Extra strong hook and loop fasteners hold up to 10 lbs. Waterproof adhesive. Ideal for indoor or outdoor use. Sticks to most surfaces, including plastic. Excellent for indoor or outdoor use where extra holding power is needed. Industrial-Strength. Hook and Loop Fastener Type: Heavy-Duty Strip; Use Environment & Rating: Indoor/Outdoor Heavy-Duty; Color(s): Black; Tape Pad Size: 2" x 4".