DoohicKey Key Chain Hook Tool Size:ONE SIZE 40% recycled polyester JC9796 40% recycled polyester shorts and socks for a complete look inspired by the elite The DoohicKey Key Chain Hook Knife features a fold out locking blade with both a smooth cutting edge and a curved bladed end that is perfect for opening boxes without damaging the contents inside Features Features a two inch locking stainless steel blade with two cutting edges Durable + lightweight aluminum body Blade constructed from corrosion resistant 420j2 stainless steel High hardness level (51 54HRC) of the blade results in superior edge retention for sharpness that lasts Hooked blade is designed to open boxes without damaging contents inside Smooth bladed edge is perfect for most common cutting tasks Lock back design keeps the blade locked in place while in use S Biner MicroLock features a twist to lock design making it easy to attach