About this item Dual Valve Head with Thumb Lock The bicycle tire inflator pump has 2 in 1 U S and F R specifications gas nozzle kits, dual pump head helps inflate all kinds of bikes; Compatible with Presta & Schrader dual valves.no adapters or adjustments needed. Thumb lock ensures tight seal and no air leaks. Wide Applications Compatible to universal U S and F R valves; Foot air pump with inflation needlecan inflate for bicycles, electric vehicles, motorcycles, air cushion, swimming ring, basketball, football, life buoy, air bed, and any inflatable balls toys. Durable and Stable Foot Pedal Distinguish between traditional and hand blowing, this portable bicycle inflator is anti-slip retractable pedals, hinged plastic handles and durable valves makes this bike air pump more stable and less slippery when inflating. Fast inflating and saving time, you can use it for a long time. High Compact and Lightweight The bike floor pump inner and outer tubes is made of aluminum alloy material. More wear-resistant and weight savings. You can carry a mini size bike pump in your bag for any travel or leisure activity. Contact us Our products are inspected before shipment. If the product is damaged or can not be used, the customer can contact us. All customer can return or get refunded. You have no risk to try.