Barrel and shaft made of lathe turned luminum: end caps and handle made of composite matrix Inflates tires with 30% fewer strokes than traditional hand pumps due to the HV (High Volume) design Equiped with the ABS (Air Bleed Equipped) Flex hose (Presta/Schrader) and a composite matrix mounting bracket Max: 90psi Weight: 94g (small), 109g (medium)