NightBright USA high performance photoluminescent signs. Dimensions 15 inches x 6 inches x 0.02 inches Very easy installation. Does not require electricity to operate. Manufactured 100% in the USA with Aluminum 100% recyclable. It is not flammable and does not issue toxic gases when exposed to heat, fire or flame. Flame Spread Test conducted demonstrates that the signage does not burn. Excellent resistance to chemical and stain. Easily cleaned, washable with damp cloth. Meets and exceeds New York City Building Code Reference Standards RE 6-1 and RS 6-1A. Has been approved by the City of New York Department of Buildings MEA 462-05-M, Code Section 27-383(b), exceeds all luminance standards. Complies with ISO 7010 E001, E002, E003 and E004. No radioactive materials used in the manufacture of these products. Environmentally Friendly may be safely disposed of in a sanitary landfill, but even better you can take it to the recycling center.