Gorilla Tough & Clear Mounting Tape Squares are clear, double-sided, 1 inch 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! 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.