Scrub scouring gel is an effective, mild abrasive solution that deep cleans without scratching glass or most plastic surfaces. Scrub removes product coatings, alkali & residue buildup. Use scrub on dive mask lenses & skirts, plastic slates & more. Scrub is made with all natural ingredients, is hypo-allergenic, alcohol and bleach free. Scrub can be applied wet or dry and comes in a 1 oz (30ml) convenient push-top cap container. CAUTION: DO NOT USE ONPLASTIC LENSES. Don't just clean it ...scrub it!