This Gorilla Waterproof Patch is a 4" wide, black adhesive tape made by Gorilla. It has an extra thick adhesive layer and a UV resistant backing, allowing it to form a permanent bond both indoors and outdoors. The tape is suitable for patching holes, cracks, gaps, and tears, and can even be used underwater. It's a versatile product that can be used in various settings, including home, auto, marine, camping, RVs, and the outdoors.