Leave your CO2 and hand pumps at home with this compact battery operated pump- Universal chuck compatibility, works with Silca Schradero & Hiro chucks- USB-C rechargeable- Auto shutoff at 72psi for hookless safety (no gauge)- Equivalent to 4 CO2 cartridges- TSA-compliant, carry-on travel safe- 25-60 minute charge time, charge lasts for months- 111g- 65 x 46.5 x 28mm