This set comes with:

1 P-38 US Shelby Stainless Steel Can Opener

1 P-51 US Shelby Stainless Steel Can Opener

2 - 4.5" Stainless Steel Military Ball Chains

The P-38 is known as a "John Wayne" by the United States Marine Corps, either because of its toughness and dependability, or because of an unsubstantiated story that the actor had been shown in an as-yet-unidentified training film opening a can of K-Rations. The can opener is pocket-sized, approximately 1.5 inches (38 mm) long, and consists of a short metal blade that serves as a handle, with a small, hinged metal tooth that folds out to pierce the can lid.  The larger version called the P-51 is bigger, 2 in (51mm), and somewhat easier to operate.