This pump is designed to allow the air to be pumped from two directions simultaneously.
    It is effect a radical change in traditional pump design and introduces an totaly different  
    concept in the pump technology.

Specification

Head Schrader   Presta / by adaptor Barrel Aluminuim Handle Plastic Capacity 100psi / 7 bar Size of positioning set   32mmX25mmX50mm Size of barrel   Ø20mmX120mm Size of bag   132mmX103mmX32mm Weight 225g Accessory Brass adaptor   Inflating needle