Key benefits Reduces shock transfer from the road to the vehicle, improving ride comfort and stability. Helps prevent bottoming out on bumps and uneven surfaces, protecting suspension components. Simple, reversible add-on that works with factory coil springs to smooth driving over rough roads and when carrying loads. Compatibility and sizing Universal fit for most cars, trucks and SUVs. Select size A when the gap between your coil spring turns measures between 2.35" and 2.6". Measure the distance between adjacent coils after the vehicle is safely jacked up to ensure correct sizing. Function and performance Acts as a coil spring buffer to improve shock absorption and reduce harshness from road impacts. Enhances vehicle stability during passage over speed bumps, potholes and other road irregularities. Designed to work with existing suspension springs without permanent modification. Installation (simple, no special tools required) 1. Safely jack up the vehicle and remove the wheel to access the coil spring. 2. Measure the coil gap to confirm the correct buffer size. 3. Insert the coil spring buffer into the spring gap. 4. Secure the buffer with the supplied or standard cable ties as needed. 5. Reinstall the wheel and lower the vehicle. Safety and cautions Always jack the vehicle on a flat, stable surface and use jack stands before working under the car. Measure the distance between adjacent spring coils after jacking the vehicle to select the correct buffer size. Ensure the buffer is securely fastened with cable ties and recheck after initial use. Use scenarios Daily commuting: smooths out impacts from speed bumps and rough pavement for a more comfortable ride. Light hauling or carrying passengers: helps maintain stability and reduces harshness when the vehicle is loaded. Poor road conditions: provides added cushioning over potholes, broken pavement and uneven surfaces. What it does not change This product is an add-on buffer for existing coil springs; it does not replace factory suspension components or alter spring rate permanently. If your vehicle’s coil spring gap measures 2.35"–2.6", choose size A for a straightforward fit and improved ride quality.