3-IN-1 DESIGN - This mini key chain functions as a corkscrew (for wine bottles and cans), bottle opener, and a sharp knife. When closed, the corkscrew tip is safely secured and covered. When opened, the keychain forms a T-handle for the corkscrew. The keychain works as a bottle opener and the knife easily pulls out. About 3 inches in length and weighs 1.3 oz Great for use while camping, backpacking, vacationing, or just out for an evening picnic. Also, great to have handy in the kitchen, trailer, or car.