Alloy inflator head has control valve to regulate CO2 release\n Fits Presta valves only\n Full grain leather sleeve is vegetable tanned and conditioned with natural oils and waxes\n Inflator height: 20mm (.79")\n Leather sleeve length: 55mm (2.25")\n Weight (head only): 12g (.42 oz), \n CO2 cartridges sold separately