How is works:
1. The body of the stick is filled with pressurized air using a bicycle pump or air compressor.
2. When the rider jumps down on the pedals, his weight forces the shaft and piston into
Copyright Zhejiang Bowei Industrial & Trading Co.,Ltd 2003-2010 - All Rights Resrved Contact Us SeaSky Network
Friend Link | SiteMap | XML | RSS Skyrunner