Bestpatch Radial Repair Patches constructed with special rubber compound and polyester fibers. Unique single direction ply and locking wedge construction offers high strength and flexibility.. Gives permanent repair over the injury. Used to repair crown, sidewall and shoulder injuries in Passenger, Light truck, Truck, Tractor and Earthmover tyres. Separate crown injury repair units to be used for crown injuries* Cloth back & uncure patches are available Can be cured chemically (cold cure) or with any retread systems (heat cure). Use bestpatch chemical vulcanizing cement for perfect bonding. 40 pack