Website Review
What is SDKsupplies?
SDKsupplies (SDKsupplies) is a small, specialist mail-order catalog for martial arts equipment, training materials and uniforms, run in connection with the Sei Do Kai group. Its focus is narrower and more traditional than a general sports retailer: Japanese sword arts, staff arts and related budo, plus karate and kobudo gear.
What it covers
- Instructional materials — Sei Do Kai training manuals, videos, free e-books and free downloadable videos, plus a blog.
- Wooden weapons — custom and one-of-a-kind bokuto and suburito, alongside standardized shiro kashi and hickory weapons.
- Metal and sword-related items — iaito, steel tsuba for craftspeople, and swordmaker's supplies.
- Karate and kobudo weapons, plus a line of kung fu / tai chi weapons, Indian clubs and meditation equipment such as a seiza bench.
- Storage and display — weapons bags and display stands.
- Uniforms and other custom-made equipment, with the site inviting email requests for items not listed.
Who it suits
Practitioners of iaido, iaijutsu, jodo, kendo, kenjutsu, aikido and karatedo who want hard-to-find or made-to-order items rather than mass-market gear. Dojo instructors and clubs are also addressed through a wholesale section.
Practical trade-offs
- Custom work and niche stock are the draw; you are not browsing a big-box inventory with instant checkout.
- Communication is by email only — the site states there is no phone, so expect a slower, conversation-based ordering process.
- Cross-border shipping can change quickly. The site notes that U.S. tariffs made shipping its shiro kashi items to the U.S. prohibitive, while Canadian-made items such as hickory weapons should be tariffed at a lower rate. If you are in the U.S. and set on shiro kashi, ask before ordering.
- Payment is handled through PayPal, with Interac offered for Canadian buyers.
Next step: if you want something standard, check the in-stock wooden weapons and iaito first; if you want something unusual, email a description and ask what can be made.
How do I order custom martial arts equipment from SDKsupplies?
SDKsupplies takes orders by email rather than through a standard checkout-and-ship flow, and custom work is a conversation first. The site states plainly that it has no phone, so email is the channel for both questions and orders. For custom pieces, the process is: describe what you want, get a reply confirming feasibility and price, then pay.
How the ordering path works
- Start with an email. The catalog invites you to "drop us a line" if you don't see what you need, noting they can often make it or find it.
- Expect a quote that bundles costs. The site says its prices usually include taxes and shipping within the USA and Canada, and that it ships worldwide with prices confirmed by email.
- Pay by PayPal or Interac. A PayPal shopping cart handles general payments in US or Canadian dollars; Canadian buyers are directed to Interac transfers to BMO, CIBC, RBC, Scotiabank or TD Canada Trust.
- Watch the tariff note if you're in the US. The site warns that US tariffs have made shipping its shiro kashi items to the USA prohibitive, while Canadian-sourced goods such as hickory weapons may be tariffed at a lower rate, and calls the situation volatile.
What is actually customisable
The page lists one-of-a-kind bokuto and suburito in stock, alongside standardised shiro kashi and hickory weapons, plus custom-designed karate/kobudo weapons and a line of kung fu/tai chi weapons. "Custom" here appears to mean both made-to-order pieces and unique finished items already listed, so it is worth asking which category your request falls into.
A practical example
Suppose you practise iaido and want a bokuto sized to your height and grip. You would email with your height, intended style, wood preference and any weight or balance notes, and ask whether a one-off or a standardised hickory piece is the better route. The reply should tell you the price with taxes and shipping included, and how to pay.
Decision criteria before you write
- If you need something quickly, ask first about in-stock standardised weapons rather than custom work.
- If you are outside Canada or the USA, request a shipping quote in the same email, since worldwide pricing is confirmed individually.
- If you are in the US and want shiro kashi, raise the tariff issue early so you aren't surprised later.
- If you are ordering for a club or reselling, mention it, as the site has a separate information section for wholesale buyers and clubs.
For background on the styles these weapons serve, Kendo Canada and Aikikai Foundation cover kendo and aikido respectively.
What makes SDKsupplies' wooden weapons different from standard martial arts weapons?
SDKsupplies' wooden weapons stand out because the catalog mixes one-of-a-kind custom work with standardized pieces, rather than selling only mass-produced training gear. The page lists "unique and custom designed Wooden weapons," "One of a Kind bokuto," "One of a Kind suburito," plus standardized shiro kashi and hickory lines. So the difference is choice: a buyer can order something made to their own design or pick a standard wooden weapon in a specific wood.
That matters most for practitioners in iaido, iaijutsu, kendo, kenjutsu, jodo and related arts, where the weight, balance and length of a bokuto or suburito affect how a form feels. A custom suburito, for example, can be sized to a taller student or made heavier for strength work, while a standardized hickory weapon is the more predictable option for a dojo buying several matching pieces.
Two practical trade-offs come from the site itself:
- Custom work usually means a conversation and a wait, while standardized weapons are simpler to order repeatedly.
- Shipping is not uniform. The site notes that U.S. tariffs have made shipping shiro kashi items to the U.S.A. prohibitive, while Canadian-sourced hickory weapons may be tariffed at a lower rate. For a U.S. buyer, that makes hickory the more practical route; for a Canadian club, the shiro kashi line may still be viable.
If you are deciding, start with the standardized hickory or shiro kashi line if you need a known size and easy reordering, and ask about a custom piece only when you have specific dimensions or a design in mind. The site says prices usually include taxes and shipping in the U.S. and Canada, and that it ships worldwide by email arrangement, so confirm the current total before ordering. You can browse the catalog at SDKsupplies.
Which martial arts equipment and supplies does SDKsupplies sell for karate, iaido, and kendo?
SDKsupplies is a specialist martial arts supplier, not a general sporting-goods retailer. Its catalog is organized around traditional Japanese and Okinawan training, with distinct departments for wooden weapons, metal swords, karate/kobudo gear, and supporting equipment.
Karate and kobudo
- Custom and unique karate/kobudo weapons
- A line of kung fu / tai chi weapons
- Training equipment such as Indian clubs (listed as a specialty)
Iaido and iaijutsu
- Iaito (unsharpened practice swords), described as superior quality
- Swordmaker's supplies, including steel tsuba for craftsmen
- Wooden weapons suited to solo forms: one-of-a-kind bokuto and suburito, plus standardized shiro kashi and hickory weapons
Kendo and jojutsu
- The wooden-weapon department covers the bokuto and suburito used in kendo and jojutsu practice
- Uniforms and protective gear are part of the wider catalog, though the page evidence emphasizes weapons and instructional material
Instructional and storage items
- Sei Do Kai training manuals, videos, free e-books, and free downloadable videos
- Weapons bags and display stands
- A seiza bench and meditation equipment
Practical trade-offs The site is strongest if you want custom work or traditional materials rather than off-the-shelf convenience. Shiro kashi items cannot currently be shipped to the U.S. because of tariffs, while Canadian-sourced hickory is expected to face a lower rate — though that situation is described as volatile. There is no phone number; contact is by email, and payment runs through PayPal or, in Canada, Interac. Prices are stated to usually include taxes and shipping within the USA and Canada, with worldwide shipping quoted by email.
Next step: if you need a custom length or weight, email before ordering with your measurements and style, since the custom and one-off stock changes. For standard gear, compare against a broader retailer such as Kwon or a dedicated sword supplier like Nosyu if you want ready-made options alongside SDKsupplies' custom focus.
What instructional materials, videos, and e-books does SDKsupplies offer?
SDKsupplies covers instructional needs in three main formats: printed training manuals, training videos, and free downloadable e-books and videos. The catalog lists these under its "Instructional Materials" section, alongside a personal blog by "Unka Kim."
H3 What's available
- Training manuals — the Sei Do Kai Training manuals, described as paid instructional books.
- Training videos — the Sei Do Kai Training videos, positioned as the paid video counterpart to the manuals.
- Free e-books — the site notes several new e-books offered at no cost.
- Free downloadable videos — grouped under a "for what it's worth" bin, so treat these as informal extras rather than a structured course.
- Blog — "Unka Kim's Martial Art bloggy thingie," written in a personal, opinionated voice.
H3 Who this suits
The subject matter leans toward Japanese sword and related arts — Iaido, Iaijutsu, Jodo, Kendo, Kenjutsu, Aikido and Aikijutsu appear among the catalog's themes, with karate and kobudo equipment also listed. That makes the instructional side most relevant to practitioners of those arts who want material tied to a specific dojo lineage (Sei Do Kai) rather than generic beginner content. If you train in a different tradition, the free e-books and downloadable videos are the low-risk way to judge whether the teaching style fits before buying manuals or videos.
H3 A practical next step
Start with the free e-books and free downloadable videos. If the instruction matches how you train, move to the Sei Do Kai manuals and videos; if you mainly want gear, the same catalog branches into wooden weapons, iaito and display and storage items, so you can combine an order. Note that the site says it has no phone contact and asks customers to email instead, and that shipping of some shiro kashi items to the U.S. has been suspended, so confirm availability and total cost by email before committing. The site states that prices usually include taxes and shipping within the U.S. and Canada, with worldwide shipping quoted on request. For broader background on the arts themselves, general reference sites such as FIK or Aikikai Foundation can help you place the material in context.
How does SDKsupplies handle shipping, taxes, and payment for international orders?
SDKsupplies builds shipping, tax and payment into a single quoted price rather than adding them at checkout. Its catalog states that prices "usually include taxes and shipping in the USA and Canada," and that it ships worldwide — but international buyers outside those two countries must email the seller to confirm pricing before ordering.
What that means in practice
- US and Canada: The listed price is normally the final price, with taxes and shipping already folded in.
- Rest of the world: Shipping is available, but cost is quoted case by case by email. Expect a delay while you wait for a reply.
- No phone contact. The site explicitly says there is no phone number, so email is the only channel.
- Tariff caveat: The site notes that US tariffs on goods from certain non-Canadian origins have made shipping its shiro kashi items to the USA prohibitive, and that Canadian-made items such as hickory weapons should attract a lower rate. It also flags this as volatile, so confirm the current situation before ordering.
Payment options
- PayPal shopping cart, for general payments in US or Canadian dollars.
- Interac e-transfer for Canadian buyers, to BMO, CIBC, RBC, Scotiabank or TD Canada Trust.
A practical next step
If you are ordering from outside North America, email before buying with three things: the exact items, your delivery country, and your preferred currency. Ask for one all-in figure and confirm which payment method applies to you. That single reply resolves shipping, tax and payment at once, and avoids the risk of a surprise charge or a tariff-related cancellation.
For comparison, large martial arts retailers such as AWMA typically calculate shipping at checkout and exclude duties, so the "one quoted price" approach here is unusual and generally friendlier for small international orders — provided you are willing to wait for an email quote.
User reviews (0)