Rubber-neopen  O-ring identification chart working mat. Contain all APEKS, Scubapro, Mares, Dive Rite, Cressi sub, Aqualung, Beuchat, JJ-CCR, and dive computer o-rings (Oceanic, Aqua, Suunto) as well as the most common o-rings used in scuba dive, like Tank neck, Tank valve, LP & HP Hose and BCD o-rings.A  helpful tool for every scuba technician when it comes down to oring sizing.

• Rubber pad 3mm thickness
• Size 35 x 65cm