Leisure Pursuits Dive Tank Key Chain is an interesting way to carry and save your dive "O" ring kit. Now you won't be left out of your dive when your old "O" ring blows. These neat little scuba tank key chains come with 12 assorted "O" rings and a brass "O" ring pick, which all tucks inside the tank with a secure screw cap.
· Aluminium scuba tank keychain
· Tank key chain with 12pc O-ring
· Tank O-ring kit with brass pick and common rubber O-rings