Gorilla Tape Black is extra strong; double-thick and incredibly tough. Whether you need to stick rough; smooth or uneven surfaces; this is the duct tape with extra grip. Indoors and out; you can use Gorilla Tape where you want. The rugged all-weather shell withstands the elements; and the double-thick adhesive remains strong; whatever it faces. Designed to be tearable; developed to be durable; Gorilla Tape stands up to the test.