Easily to install, simply release and tighten quickly release Skewers for spring replacements. for bike front rear quickly release Skewers, Skewers hollows shafts, and axles fixed rod. Consist of stainless steel component, rusts-proof, corrosions-resistant, high intensities and high elastics. Used for fixed on both end of the quickly release, play a elastics pad effect. It mainly used for fixing the two end of the quickly-release used as a spring pad.