A durable CO2 dispenser built from CNC-machined aluminum, the Twin Speed Drive CO2 features slip-on valve operation for easy inflation A Twin slip fit head presses onto Presta or Schrader valves and a neoprene sleeve insulates your hand from the cold during discharge Twin Kit includes Twin Speed Drive, Co2 cartridges and tire levers TECH SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Model Twin Speed Drive Description Inflator Head Presta/Schrader CO2 Included No Color Black Weight 13.8g Description Type Head Only Included Cartridge Count No