Ammunition Cartridge Rifleman Bullet Knuckle Knife - Tophatter's Inc. Weapons Store OnlineThe large smooth finger holes allow you to get a tight firm handle on the situation with a comfortable grip. The rifle cartridge is constructed from durable zinc aluminum to brace for impact and not to damage the users hands or fingers. To be able to keep your knuckle with you a pin is included to use it as a best buckle. Wait! To sweeten the deal there is a knife hidden in the cartridge. So to recap you have a knuckle, buckle, and knife all in one.