The Bilstein B4 series gas-pressure shock absorber is designed to restore the original handling and comfort of your vehicle. As an OE replacement, it ensures maximum safety through high damping power. This product is a single rear suspension strut assembly. Components included: - Rear Shock Absorber (Art: 19-170206) - 1 pc. Key features: - Constant damping power under any load. - High-pressure gas technology for immediate response. - Proven Bilstein quality for long-lasting performance.