Stephens MFG only uses Goodyear made belting. We carry three sizes in stock 24" 30", and 36". Standard ply for the 24" 30" belt is two ply 3/16"x 1/16", while all 36" belts are 3 ply due to industry standards. 36’ belt is made up of 3/16"x 1/16"x 1/16". We have access to any type of belting that you need please call with any questions.