This is a keychain with an authentic replacement stainless steel main parachute closing pin for skydiving rigs. The curved closing pin secures the main parachute container of a skydiving rig and is pulled during the inial stages of parachute deployment. The closing pin is considered a life-saving piece of equipment and therefore has become a symbol of the sport. Sporting a closing pin on a necklace, keychain, or charm bracelet allows skydivers to recognize each other. This necklace would make a great gift for the skydiver in your life!