Gorilla Tough and Clear Mounting Tape Squares are clear, double-sided, 1 in. squares of tape that mount in an instant for a permanent, weatherproof bond. These crystal clear squares won't yellow over time, and hold up to 7 pounds Gorilla Tough and Clear Mounting Tape Squares are perfect for indoor and outdoor projects and stick to smooth and rough surfaces. Completing DIY projects is easy with these pre-cut, double-sided squares. Mount, build and repair.