EUROTOOL Crystal Bright POL-603.00 plastic watch crystal polishing compound. 3 ounce bar. The perfect compound for removing scratches from plastic crystals. This is a money saver and extremely easy to use by charging your buffing wheel with a small amount of compound. Crystal Bright may also be use with a soft cloth if scrathces and abrasions are minor. Usine Crystal Bright in a gentle buffing motion can make old crystals look brand new.