Accurate and easy-to-read pressure gauge, help you to set your desired pressure. Aluminium alloy inner and outer barrel, more and wear-resisting Twin valve design can fit both for Presta and Schrader. Anti-slip pedal, foldable foot rests, convenient to store when collapsed. High quality Anti-freeze & Heat-resistant rubber tube, strong toughness, not easy to be stiff. Anti-slip pedal, foldable foot rests, convenient to store when collapsed.High quality Anti-freeze & Heat-resistant rubber tube, strong toughness, not easy to be stiff. Material: Aluminum alloy + plastic colour: Black + Silver size: 17.6x13.2x7cm Package Contents: 1 x Black air pump 1 x silver air pump Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.