Butterfly Knife, 2 Pieces Combs Stainless Steel Folding Practice Comb, Trainer Martial Arts Practice Tool Steel Metal Folding Knife Comb for Practicing Flipping Tricks

The silver one swings freely, just like you've expect a butterfly knife to do.The black one however, you have to force the handles to move.I thought, well, I can just loosen the screws.They seem to use some nice Torx screws. So, I break out the precision screwdriver. This should be easy, right?Nope.The screws didn't want to turn. Eventually one of them just stripped. I'll have to cut that one off and find another screw set that fits if I want to use it.So the black one may be throwaway.So, if you like the silver one for the total cost, great. Or maybe I just got a bad batch. Hard to say. But I'm disapointed.

This has proven to be a very fun fidget toy. I love just flipping it around during idle time at work. Be careful, the edge of the comb has a sharp edge! the comb itself is not really meant to comb hair either, I think it was just made to ensure it doesn't look like a knife.