WEST BIKING YP0711164 Bicycle Tire Inflator High-Pressure Pump with Self-Rebounding ?Self-Rebounding Feature: Equipped with a boost cylinder,this pump allows for effortless inflation. Once the pressure reaches 10PSI,users can release their grip,and the pump will automatically rebound,reducing effort and enhancing efficiency ?Extra-Long Air Hose: Featuring a significantly longer hose compared to traditional pumps,providing exceptional convenience by allowing users to position the pump freely during operation ?High Air Volume: This pump delivers a large volume of air and is capable of achieving ultra-high pressures,ensuring efficient and effective inflation for various tire types ?Portability and Compact Design: Unlike traditional pumps,this model does not feature large handles or bulky bases,enhancing portability and facilitating easy storage ?Innovative Dual-Head Design: Incorporating patented technology,this pump features dual heads compatible with both Presta and Schrader valves simultaneously,offering users a more convenient and effortless inflation experience ?Specifications: ?Material: Aluminum Alloy ?Weight: About 332g ?Features: High Pressure/Effortless/Impact-resistant/Durable/Equipped with Metal Pressure Gauge Package included: ?1 x Air Pump ?1 x Air Pressure Gauge ?1 x Tool ?Other items not included