ITEM NAME:Portable CO2 Bike Inflator Head, Quick & Easy, Presta & Schrader Valve Description: CO2 bike inflator head ONLY, which is small, compact and convenient for precise controlled inflation Precision machined head with air flation control knob and washers seal threaded connection ensuring NO leakage for 100% reliability Compatible with Presta and Schrader valves Reliable and simple control valve for precise adjustment and control Works with most threaded CO2 Cartridge Specification: Material: Aluminium Alloy Size: approx. 55mm/ 2.2 inch Package Includes: 1Piece CO2 Inflator Head (Cartridge Not Included) Note: Please ensure CO2 canister is fully tightened into device before use. SKU: FUZ0026712354040844.Compatible with Presta and Schrader valves. Size: approx.