Safe for use on Straaglass, Eisinglass and other plastci surfaces. Easy to use – apply to a clean, dry cloth andrub scratches at a right angle. Other plastic restorers require three steps – Star brite saves you time, money and effort by doing the job faster and better in just two steps! The two-step answer to hazy, scratched, aged-looking plastic surfaces. Quickly removes stains and light discoloration. Follow up withStar brite Plastic Polish Restorer (part #87308) to obtain maximum shine, clarity and protection.