Flitz PL 31503 Mixed Plastic, Window and Fiberglass Restoration Kit Kit contains X-Large buff ball, 1.76 ounces polish, wax protect and mail-in coupon for free microfiber cloth This helps to restore clarity to yellow, hazy, chalky plastic windows, eisenglass, plexiglas, gel coat, fiberglass on your boat and RV Can be used on most surfaces of your boat or RV including railing and bright work too Restore the surfaces of the plastic windows and fiberglass easily with an environment friendly product