Specifically designed for the vulcanization of tube patches, valve patches and rubber-based tube valve repair units. REMA TIP TOP's feather edge patches are designed for repair of bicycle, garden, car, truck, and tractor tubes, When installed with REMA TIP TOP Cold Vulcanizing Fluid, REMA TIP TOP tube patches will stretch evenly in all directions, resulting in a perfect bond and seamless repair Features: 5 grams Glue Only (patches sold separately)