The Pocket Drive HV is an incredibly compact and lightweight high-volume bike hand pump, featuring impressive pumping efficiency. Its constructed from durable CNC machined aluminium and has a knurled barrel for slip resistant operation.With its overlapping handle and integrated ABS Flex Hose, the Pocket Drive bicycle pump provides unparalleled performance for its size. The cycle pump is Presta and Schrader valve compatible and completely rebuildable for long lasting service. Key Faetures: Incredibly compact and lightweight.CNC machined aluminium.Integrated ABS Flex Hose.Presta and Schrader valve compatible. Completely rebuildable.