45PCS R-745 America Style Universal Tire Repair radial bias tire repair cold patch Unit for Passenger Car Small1 5/8" ,Medium 2 1/4" ,Large 3 1/8" Package:41mm (1 5/8") 15pcs ,57mm (2 1/4") 15pcs ,79mm(3 1/8") 15pcs Material:Natural rubber Color:black vulcanizing gum,blue poly backing Usage:Permanent tire repair Universal All Purpose Patch These patches are designed for use on Radial and Bias-Ply tires. New formula and thicker rubber help resist dimpling. Can also be used for inner tube repairs.