Product Details: The X-tra Seal 2-1/4" Rubber Medium Round Universal Radial Tire Repair Patch is the perfect solution for repairing radial tires. This patch is designed for chemical or heat vulcanization and features a black vulcanizing gum and blue poly backing for superior adhesion and strength. The patch is easy to use and provides a reliable seal that will last long. With its universal design, this patch can be used on any radial tire, making it a great choice for any tire repair job. FleetPride is your First Click in Heavy Duty®.