The ZT-503 is an amazing air pump. It could be used in schrader, presta
     and woods valves of the tire. The ZT-503 can also be used on the air fork
     with the ZT-611Pressure gauge.

Specification

Head Schrader   Presta / by adaptor Barrel Aluminuim Handle Plastic Capacity 100psi / 7bar Size  190mmX28mmX60mm Weight 125g Accessory Brass adaptor   Bracket