Comprehensively improve driving stability, enhance driving comfort, and enjoy driving pleasure;It can reduce the vibration of the body to a limited extent and absorb the noise of the suspension system; Solve the problem of weak spring and increase the body by 0.2-0.3 cm, but it cannot effectively improve the bearing capacity; Limited buffering and absorbing the instantaneous pressure caused by the rough road to avoid damage to the shock absorber system (Warning: Exceeding the limit will damage the shock absorber system).