The JDM SPEED Coilovers Suspension Kit for Nissan Altima 2007-2012 is designed to provide improved handling and performance for your vehicle. Made from a combination of aluminum, steel, and carbon, this kit includes 4 adjustable strut assemblies for both front and rear placement on the vehicle. The shock absorber system features a double pipe design with oil shock absorbers, offering a smoother and more controlled ride. This kit is a reliable choice for enhancing your Nissan Altima's suspension system.