The DoohicKey® SkullKey™ Tool is a simple, key-shaped tools that attach to your key ring, so it's always at hand when you need. The SkullKey's clever design incorporates each of the following functions: a file, a #2 flat-head screwdriver, a scoring point, a serrated edge, and, finally, of course, a bottle opener (because you always want a bottle opener!). Made of durable stainless steel, the DoohicKey SkullKey is travel and airport friendly, and, because of its endless uses, it's endlessly useful.