The Bilstein B4 Series OE Replacement gas-pressure shock absorber is engineered to restore the original ride comfort and stability of your vehicle. Designed specifically for the rear axle of the Smart Fortwo (453) and Renault Twingo III, this twin-tube shock absorber ensures maximum safety through high damping power and constant effectiveness under any load. Item includes: 1x Rear Shock Absorber (Part No: 19-248257). It is recommended to replace shock absorbers in pairs for optimal performance.