The high-precision die-cast alloy can easily pressurize to 150 psi to meet the air power required for highway bikes and can also be inflated for common bicycle tires. Full power can be loaded 8 highway bicycle tires Inflatable speed for about 3 minutes can be filled with a load tire compatible with the treasure treasure fair tourism is lightly installed and Wanquan is prepared. No external power is required when the pump is running. The shape is small and can be carried in the car and it is easy to place in the suitcase or backpack. The bike is more relieved. Through a number of strict tests, we provide long-lasting quality: compression test, electric strength test, overpressure protection function test, hydrostatic test pipe, load of high/low temperature test, trachea tensile strength test, free drop test, motion lasting test