The product is made of engineering plastic, aluminum alloy shell material, lightweight and durable. Weight 170g, applicable to the United States valve and French valve. Pressure reached 130PSI. Its features: high pressure, light weight, can be folded handle, easy to carry, no need to change the mouth, cost-effective. Pump rod anti break, the nylon composite material, high ordinary pumping rod easily broken defect, accidental fold Bay, still can continue to use. So that you do not have to worry about riding.