TerraGrips Tire Chains 18x8.5-10 [ST90012] Improved traction in snow, mud, mulch, gravel, and more Rubber slats provide superior grip and protect driving surface against damage Rubber offers exceptional durability and prevents additional tire wear caused by steel chains Easy, no-tools installation; Plated steel components resist rust; Made in the U.S.A *Important* Please refer to sizing information on left prior to ordering. Not recommended for R1 or R4 tires