All tire chain kits are for factory tire sizes! QuadBoss Chains - QuadBoss V-bar tire chains won't fall between the lugs on your ATV/UTV's tires when you need that traction the most. Sharp piercing tips on the V-bar chain provide super reliable traction. They are designed for rear wheel mount unless noted otherwise below. Sold in pairs.QuadBoss Tire chains are packaged in a plastic storage box to put away neatly after use.ATV-S = Small. 8 V-bars per row ATV-M = Medium. 9 V-bars per row ATV-L = Large. 10 V-bars per row ATV-XL = X Large. 11 V-bars per rowIf tire chain tensioners are wanted they are sold in a pair and can be found in the link below.---> QuadBoss Chain Tensioners <---