P38 Can Opener 20pk
Brand: US Shelby CO

The can opener is pocket-sized (approximately 1.5 inches, 38mm, in length) and consists of a short metal blade that serves as a handle (which doubles as a flat-blade screwdriver), with a small, hinged metal tooth that folds out to pierce the can lid. The P-38 is cheaper to manufacture than a standard can opener, and is smaller and lighter to carry. The device can be easily attached to a keyring or dog tag chain using the small punched hole.

P-38s measure 1.5" / 38mm
Lightweight, simple design
Small hole in the body lets you attach one to your key or dog tag chain