Sleek, stylish self-defense discreetly at your finger tips! Our Black Belt With Hidden Knife is your own secret weapon to defend yourself if you are ever in a situation where you need to do so. The innocent-looking 3 3/4" heavy-duty TPU buckle hides a 3 1/2" stainless steel blade. The non-reflective partially serrated blade is full-tang and razor-sharp. It fits securely into the buckle but can be quickly deployed at a moment's notice. The adjustable, sturdy black canvas belt is 53 1/2" in overall length so that it will fit most adults