Combo Pack (1 V-Groove 1 Small) Assorted Sizes Slotted Universal Rubber & Polyurethane Jack Pad Frame Rail Protector Durable construction, full size extra large version provides more cushion and crush resistance Prevent your frame rails and pinch welds from bending when using a Jack to lift your car, can also protect painted or coated suspensions components Fits most Jacks and vehicles, compare dimensions and ensure fitment to your vehicle Combo two pack: One SMALL POLYURETHANE Jack Pad and One LARGE RUBBER V-GROOVE Jack Pad Large Pad Diameter: 3.0" Height: 2.0" Slot Width: 0.4" Slot Depth: 0.6" Small Pad 2.5" Diameter, 1" Tall, does not fit Trolley Jacks