Standard GLW Glow in the Dark Tape is a flexible polyester laminated photoluminescent film tape with a permanent adhesive on one side. The photoluminescent pigments absorb and store energy from normal, ambient light. In sudden darkness the tape is immediately visible. The tape provides a non-electric safety marking system that easily and inexpensively affixes to walls, handrails, columns, around door frames, and along stairways and baseboards (provides visibility during an emergency). It is wound on a liner for easy handling. Also used for identification of critical equipment controls, exit and directional signage (especially for escape routes and stairways), light switch covers, labels, decals, novelties, sporting goods, trims and special effects. Used in hotels, hospitals, schools, public facilities, office buildings and manufacturing plants.