No. K10 L
Lightweight Butterfly Practice Trainer
192A perforated, lighter trainer for faster tricks.

Practice Trainers · No. K10
The Pro Line is the trainer we tune for serious flippers: upgraded pivots, reinforced screws and pins, a latch lock, and the weight of a real butterfly knife without an edge.
Finish: Black
Flipping lives or dies on the pivots. We tuned the Pro Line so the handles swing freely without play, and the screws are easy to snug when they loosen.
Rainbow and Pacific Blue are finished with a coating that catches light mid-flip. It looks great on video, which is where a lot of our trainers end up.
| Material | 420C stainless, 58 HRC |
|---|---|
| Trainer blade | 3.94", unsharpened |
| Overall | 9.05", 4.76 oz |
| Lock | Latch lock |
| Pivots | Upgraded, tunable |
No. K10 L
A perforated, lighter trainer for faster tricks.
No. 6681
Our best-loved folder — a lock button that keeps it shut in the pocket.
No. 6688
A 3.5" tanto point, hardened to 60 HRC, with a paracord lanyard.
No. 6688 U
Our 6688 tanto, rebuilt on ball bearings, in a hard carry case.