- Size: 1.85x1.54x1.22in - Material: High quality rubber - Color: Black What will you get in the box? -4× Helical spring booster Our product advantages: - Made of high quality rubber, durable and stable. - Effectively solve the problem of weak springs under heavy loads, protect the shock absorber and suspension system, and improve driving comfort. - It can be easily installed by simply inserting it into the vehicle spring and can meet two different height requirements. - Suitable for most cars, trucks, SUVs, etc.