TheLezyne Sport Drive HV Pumpfeatures a barrel and shaft that are made of aluminium with a Composite Matrix handle and end caps. The overlapping handle and barrel with oversized piston and shaft, are integrated into a compact design so you can have this bike pump handy at all times without it taking up extra room. Equipped with the Flex Hose, which guarantees a secure (threaded) connection on both Presta and Shrader valves theLezyne Sport Drive HV Pump is a winner for everyone! Lezyne Sport Drive HV Pump Features Aluminium Construction: Aluminium is a strong, lightweight and durable material used to make various precision pump components. Composite Matrix: Composite Matrix is a high-strength fiber reinforced material used to make mold injected components ... More info