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Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)
Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)
Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)
Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)
Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)

Jörg Sprave's "Instant Ronin" Double Tanto Knives (set of 2)

Pre-order
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00

Shipping Estimate

We are shipping pre-orders to US customers right now. Existing orders expect tracking by July 9th 2026. New orders placed on/after July 1st will ship by last week of July.

For more information on backordered products, please see our FAQ/Backorder staus page

The "Instant Ronin" Double Tanto Knives: A Design Revolution in Edged Tools
Experience the convergence of innovative engineering and cutting-edge design. The Instant Ronin Double Tantos are more than just a pair of knives—they are a transformable, functional piece of history, the result of a two-year development journey. 

This is a limited quantity release. Only 5000 sets made. LIMIT OF 2 PER CUSTOMER. 

Ingenuity in Every Detail

  • The "Magic Moment": The core feature is a revolutionary sliding mechanism that allows the two separate extended-length knives to combine into a single, compact housing. The blades are designed to unlock each other, allowing them to seamlessly slide back into their own handles.
  • Secure and Sturdy: Each knife features a robust tanto design and is built to be very sturdy when separated. Invisible, integrated magnets hold the knives closed securely.
  • Designed for Purpose: The stability of the knives is comparable to a well-made folding knife. They serve beautifully as a unique collector's piece and a useful normal knife 

Specifications:

  • Limited Release: This one-of-a-kind design is a strictly limited edition of only 5,000 sets
  • Two Knife Set: The Instant Ronin is sold exclusively as a set of two knives.
  • Designer: Jörg Sprave & Marten Koning
  • Manufactured by: Fox Knives in collaboration with Midgards Messer
  • Blade Steel: D2
  • Handle Material: Aluminum

Optional Accessories: 

Secure your place in knife history. Once they are gone, they are gone forever

Overall rating: 4.6744184 / 5 from 43 reviews.

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Reviews

Cool Collection Piece - Couple of Disappointments Though

"Really cool set of knives with a super unique design. Ultimate fidget toy for the (home) office and fun to show to people. My set does stick a bit when sheathing though. Quite a bit sometimes, to the point I feel like I really need to slam them together which detracts from the overall feel of quality. There is also a small amount of blade wobble on one of them. For the price tag this is a bit of a bummer, but I still like them for the nerd factor."

— Mike M. (3/5)

They are great.

"Great concept. The handles are a bit on the slick side. But with some tape. They are nice now."

— Ger G. (5/5)

Unique and Amazing

"I just got my knives and I love them. I have shown them to my friends and all of them are amazed at how this is concealed into a baton sized unit. This is totally my kind of knife. It is built well and I love them. They fit in an ASP holder or my flashlight pouch. I was even thinking of adding a rubberized grip that slips on and mimics a Samurai word handle. I think that would make this knife even more badass. Many of my friends want one too. It truly is great knife or knives. I think it would even work as a impact weapon when closed. It does weight a lot. hahah"

— David (5/5)

A Novelty that has actual realistic applications

"Aside from price, this could have been construed as a novelty. IT IS NOT. extremely well made, clever mechanism/use of magnets, commendable steel quality in blades. As Mr Sprage said, it can be addictive"

— Howard T. (5/5)

Needs improvement but still pretty cool

"Blades scrape when opening and closing and made metal shavings until part of the hilt was wore down. I’m sure it made the blades a little dull. Even with that it’s still one of my favorite knives to open."

— Austin (4/5)

Ronin

"I’m really happy with these knives. The only thing I would say is it’s a little tough to get them back together. Midway you got tap it in without slamming them together. Other than that, they’re great really cool. !"

— SETH H. (4/5)

Excellent quality

"Excellent quality item, very nicely made and blades are very well designed."

— Christopher F. (5/5)

The best Invention

"This is by far the best Double Tanto Knives I ever owed."

— EMMETT M. (5/5)

Very nice!

"Love the knives. Mine do not collapse very easily. I have to slap the hilt to close it."

— Jared T. (4/5)

Great well made double knife

"Very well crafted knives that are super smooth when pulled out. Highly recommend!"

— robert l. (5/5)

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