Specially formulated extreme heavy-duty adhesive tape VELCRO brand strips for rough surfaces. Sticks to all common household surfaces, including: Paint, metal, wood, brick, concrete, plastic, and glass. Water, UV, and chemical-resistant. Adhesive strip reaches maximum strength after 24 hours. Not recommended for fabrics, dashboards, flexible vinyl, or underwater use. Continued exposure to full sunlight can damage fastener. For indoor or outdoor use. 3 sets of 4" x 6" strips.Maximum operating temperatures: -30 F to 180 F. Titanium.