The Kershaw Lucha 5150 butterfly knife was built for flippers after getting input from flippers. The knife blade is build such that it gives a true pendulum action to help you jump, spin, and fly with accuracy. The hinge has KVT ball bearing for smooth operation. The handle has been rounded around its edges so it turns freely in your hand. Rounded corners on the latch keep it from catching when the knife is in motion, and it has a positive stop on it so it does not contact the blade. Oh yeah, this butterfly knife is MADE IN USA.
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