Easily to install, simply release and tighten quick release skewer for spring replacements. Perfectly fit for bike front rear quick release skewer, skewer hollows shafts, and axles fixed rod. made from stainless steel matter, rust-proof, corrosion-resistant, high intensity and high elastics. Used for fixed on both ends of the quick release, play a elastics pad effect, effectively prevent quick release loose. It mainly used for fixing the two ends of the quick-release hub for quick-release hubs, used as a spring pad, effectively improving the quick release fixation strength.