Fit for most Jacks and vehicles. Prevent your frame rails from bending when using a lift to lift your car. Made with molded rubber compound,provides more cushion and crush resistance. Thick and durable,fiber core increase durability, able to hold up to sharp sub-frames and pinch weld lifting points. 100 new and high quality. Specification: Material: Rubber Color: Black Round: Diameter: Approx.120mm/4.72 inch Thickness: Approx.30mm/1. Square: Size(): Approx.120x80mm/4.72x3.15 inch Thickness: Approx.25mm/0.98 inch : Diameter: Approx.120mm/4.72 inch Thickness: Approx.10mm/0.39 inch Package Includes: 4 Pieces Auto Lift Arm Pads Note: Please allow 0.1-0.5 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you.