Features: Natural glow in the dark, no need of power energy, energy conservation. Environmental protection, bright warning labels can also beautify the environment effect. Waterproof, strong self-adhesive. Construction is convenient and simple. Mark position: can stick on electric switch, remote control panel, wall switches, plugs, sockets, locks, flashlights, door handles, handrails, fire-fighting equipment, fire alarm, rescue equipment, etc., can be marked the location of its existence, easy to use. Safety signs: Safety warning role stick on such as emergency evacuation passageway, the subway station, underground passage, karaoke bars, dance halls, cinemas, supermarkets, stores, hospitals, railway stations, airports, docks, etc. Specifications: Safety: Inert and non-toxic Adhesive: Non-permanent/peelable type Color: White Emission Color: Green Half life of afterglow: 24+ hours Lifespan of luminescent material: 5 years+ Size(W*L): 12MM*3M/15MM*3M/20MM*3M/25MM*3M Package content: 1 x Luminous Tape