For ultimate durability and strength, all our Aluminum Skid Plates are made with High Strength 5052 H32 Aluminum 3/16 (4.5 mm) thick. Central skid plate kit includes central and lateral skid plates. Ultra-durable protection for the underside of your vehicle. Makes work easy in more demaning terrain. Must be used with Underbelly Skid Plate Kit (715002446). For MAX models only. Defender MAX