Ultimate Survivals Reflective Tape is a High-Performance Reflective Tape that Adheres to Most-Non-Porous Surfaces and Reflects Light at Night so you can be Seen-More-Easily. Tape is Highly Flexible, Works both Wet-or-Dry and provides Reflectivity Over-a-Wide-Range of Angles. The Tape can be used on Rubber Film, Vinyl Film, Vinyl Laminated Cloth, Glass Reinforced Polyester, PVC Film, Polyurethane Film, Aluminum and many other Smooth-Surfaces. The Ultimate Survival Reflective Tape is a SOLAS Compliant Product and is approved by the US Coast Guard. Tape is made from 3M Scotchlite Material and comes in 8 pieces measuring 2" x 4" (5.1cm x 10.2cm). Tape is Hand Washable in Warm Water with Detergent.