The product is a pair of Monroe rear shock absorbers designed specifically for BMW 3 and 4 Series models (F30, F31, F32, F33, F36). These twin tube gas pressure shocks are made of steel and come with a manufacturer warranty of 3 years. The shock absorbers are gas charged and sealed for 100% accuracy of fit, ensuring smooth and controlled suspension performance. With a warranty period of 5 years, these shocks provide reliable and long-lasting suspension support for your vehicle.