Russell
rural area

Mar 30, 2025

Pros: None

Cons: Overall Quality

Micro knife, macro novelty

I need my novelty minis and the nice-n-cheap Kostka is basically ideal to the task and not a bottle opener in sight. Clean/timeless design and ingenious simplistic mechanism spell the gents conversation hilarity of the future and lend an air of sophistication/advancement even to a cluttered desk area. I like using lesser known brands anyway heh heh. Cool little bellied recurve clip point instead of just a regular small multitool/Swiss army type blade shape, and love the Euclidian perfection of the dramatic plunge grinds from the "cube" stock that doubles as a thumb fidget handle when closed, in the vibe of flat-ended CEO knife. What a great gift idea, superior office item and non-restaurant gents backup but mine just stays on coffee table area among other prized outstanding small novelty kit goods

Richard
Tennessee

Aug 12, 2026

Pros: None

Cons: None

Conversation piece

Reminds me of the old lift and slide knife that used to be handed out with buisness names on them.

Anthony
Pittsburgh, Pa

Jun 13, 2026

Pros: Blade Material, Blade Sharpness, Overall Quality, Weight

Cons: Ease of Opening

Pretty neat little blade

Small, unobtrusive, and clever folding knife. Did I mention small?? At just over a quarter inch square and three inches long it just about disappears in a watch pocket The two-way folding design is clever, but hardly quick to deploy, and requires some care when closing. This is NOT a tactical knife in any way, but a “gentleman’s” knife. My example came quite sharp, and a few strokes on a strop made it hair popping sharp. An interesting and useful conversation piece. My first and only knife from Czechia. (Nice to see something NOT from China!!)

Jphil
California

May 11, 2026

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Weight

Cons: Pocket Clip, Sheath

Beautifully crafted knife

This is one cool knife, it looks like an unsuspecting knife. It's a great design and people are amazed when I open it up. The blade is quite sharp and there is no clip or sheath to wear it. It's small but very substantial in weight. I actually carry it in part of my leather wallet.

Knuster
CA

Aug 26, 2026

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Sheath, Weight

Cons: None

Wonderful unique knife

Great value for money. Very original design

Johannes M. R.
Western PA

Mar 07, 2026

Pros: Overall Quality

Cons: None

Too Interesting to miss

Wow, this is a fun little knife. It is quite little, by the way. I can't say that it's hugely practical, but I can't say it isn't. Mainly, the method of it open is so different from most things out there--though I bet one would find that the general idea had been done before. Still, I find it interesting. The quality seems good to me. The blade is sharp enough for me. It feels reasonably solid. I've got lots of little pocket knives and can say confidently that this would not be the most functional, but I bet it would serve well for light-duty matters. Plus, it will be fun to chat about it with people. I feel like it would make a good gift too, given that it is amusing and doesn't come across as a weapon. This brings up my last point, it is fun to open it, but not quick--don't think of this as a backup tactical knife.

1Tex2sc
Simpsonville SC

Mar 23, 2025

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Overall Quality

Cons: None

What a conversation piece.

The beautiful small cube, looks like a fine jewelry piece..solid, shiny, and never know it's a knife. I put it in small leather sleeve, and keep in my pocket. As a knife lover, owning way too many knives, this is a true favorite. Show it off, simple construction, but solid as a rock, super sharp and just a fun knife.. Get one, you won't be sorry..

Cris J.
Rockville, IN

Apr 23, 2025

Pros: Ease of Opening, Handle Feel, Handle Material, Overall Quality

Cons: Blade Material, Blade Sharpness

Pure Beautiful Novelty

I was positively surprised by the fit and finish. Sure, it's a novelty knife, but it's also a little beauty!

Mountainjeff
Colorado

Apr 17, 2026

Pros: Blade Material, Blade Sharpness, Overall Quality

Cons: Ease of Opening, Lock Ease of Use

Sweet Fidgety

Glad I have one, just to say so. It did loosen up with just opening and closing. Kind of takes the "forged of a block" feel out of it. It would fit smoothly where you need to take it. Joke. For that, though, it should be made of plastic or other xray proof... but I digress, Yeah, it's cool, doesn't look like a knife at all. Something that a cop would definitely say, "What is that?". I think I'm going to buy another.

Peter
AZ

Jun 11, 2026

Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Overall Quality, Weight

Cons: Sheath

Mikov Kostka

Well made and sharp out of the box. Fun little gentleman’s knife. Wish it came with a pocket sleeve or sheath (I happened to have a small pocket sheath from AG Russell that worked perfectly. Unique little knife

Sockeye Tactical
Heyburn, Idaho

Oct 04, 2025

Pros: Blade Material, Ease of Opening, Handle Feel, Handle Material, Overall Quality, Weight

Cons: Blade Sharpness, Lock Ease of Use, Lock Type, Pocket Clip, Sheath

Clean and Classy

Definitely a conversation starter. Very clean look and unique opening style. Has a clean look and is fun to show off. Many people I show it to say it reminds them of a butterfly knife, even though it is very different. Mine came very dull, but the 440A steel was easy to sharpen and soon had a nice edge. It was smaller than expected, so read the measurement descriptions. I’ve only had it a short time, but I believe the pivot will get loose over time. If you want something that is very clean look and even timeless/retro with a unique twist, I am sure you would like this.