The Pocket Drive is an amazingly compact and lightweight bike hand pump that's small on size but still manages to dish out plenty of pumping efficiency\n Constructed from durable CNCmachined aluminum. Llightly knurled handle for slipresistant operation\n With an overlapping handle and integrated ABS Flex Hose, the Pocket Drive offers unmatched performance for its size\n The pump is Presta and Schrader valve compatible, and it’s completely rebuildable for years of worryfree use