Lightweight aluminum design stores cartridge and protects from cold cartridge when in use Auto head fits Presta and Schrader valves without adapters Accepts 16g threaded and non-threaded cartridges Locking mechanism stores CO2 gas safely Includes one 16g threaded CO2 cartridge Universal PV/SV Black 1 - 16g AlloyUPC/EAN/GTIN: 642016102509