11D3-KU9042AM Radical Judgement Automatic Knuckle Karambit Knife

These aren’t your normal run-of-the-mill knuckles. These knuckles are made from zinc aluminum and feature an ergonomic design that fits comfortably in the palm of your hand. The material used makes this knuckle lightweight yet still able to deliver a hard blow. The best part though is the hidden stainless steel karambit blade that pops out at the push of a button. Now you have the ultimate protection at your disposal.