Rubber spacer with full ring design, reinforces car buffer/front shocks/rear shocks and shock absorbers TPE Thermoplastic Rubber - Environmental friendly and Resistant to coil abrasion, oil, salt, gravel . Enhances driving stability while extending the life of coil springs and the suspension system. Enhanced stability, diminish the noise and vibration remarkably from suspension component. Prevents coil sagging with a reinforced suspension. This absorbs and dissipates the shock from rough road conditions while extending the life cycle of coil springs and the suspension system.