Our Knuckle Buster is a fun bottle opener that works just like a professional speed opener, but it features a cool novelty design. Constructed from a high quality stainless steel material, it has 4 holes where you slip your fingers into and a smooth, slightly angled palm grip. We offer many different, full color designs on these, and they are definitely a bartending tool that will certainly grab everyone’s attention!The Knuckle Buster is intended purely for bottle-opening purposes. The use of the Knuckle Buster is not to be used in any form or fashion as a weapon, or considered to be a weapon. The added “knuckle grip” gives a bartender added leverage to open bottles. The buyer expressly agrees to indemnify and hold harmless BarSupplies.com Inc for all claims resulting directly or indirectly from the purchase, ownership, or use of the Knuckle Buster.