Captain O-Ring Deluxe 20pc VITON Save-A-Dive O-Ring Kit for Scuba Diving Tank Valves, Hoses, Regulators, Dive Cameras, Etc (Diver) 20 VITON O-Rings (90 Durometer) Includes sizes 003, 010, 011, 014, 112, 214 Packaged in a convenient metal tin Great item to keep in your dive bag Manufactured and Warrantied by Captain O-Ring LLC