Fogstops Anti Fog Film Adhesive Includes optimum high grade lens microfiber cloth and (2) fog stops. Peel and stick onto goggles, surgical loupes, glasses, scuba diving, swimming goggles Anti fog lasts up to 1 year. Anti discoloration, anti bacterial, and self cleaning Resistant to cavi wipes, alcohol, bleach, and heat Does not leave residue if removed. Will not cause distortion of vision.