The lezyne sport drive hp bike pump is a great value high pressure hand pump that can be used on the go when you have that vital tyre repair to make lezyne pride themselves on top quality and the the lezyne sport drive hp bike pump is no exeption the barrel and shaft are crafted of aluminium with a composite matrix handle and end caps the overlapping handle and barrel are integrated into a compact design so you can take this mini bike pump everywhere without it weighing you down it come