Features: No Air Leakage The gas-filled extension tube owns exquisite threaded mouth and all-copper valve, which has zero gap and no air leakage and fine craftsmanship is more durable. Scope of Application The gas-filled extension tube is designed for scooter, balance car, wheelbarrow, electric car, bicycle, recreational vehicle and so on. High Quality Material The gas-filled extension tube is made of copper, steel alloy and PVC, which make the link tube can be bent. It also has stainless steel extension nozzle and high density valve core. Best Service Your satisfaction and positive feedback is very important to us. If you have any problems about the gas-filled extension tube, please do not have any hesitation and call us at anytime. We are always sincerely waiting for your asking. Specifications: Type:Gas-filled Extension Tube Quantity: 1PC Material: Copper + Steel Alloy, Copper + PVC Color: Silver, Black Size: Silver :17.5*1.2*1.2cm/6.7*0.5*0.5”(L*W*H) Black: 17.0*1.2*1.2cm/6.7*0.5*0.5” (L*W*H) Net Weight: Alloy : 55.0g/1.9oz Black: 40.0g/1.4oz Package: 1* Gas-filled Extension Tube