My pursuit for perfection led me to develop this glass polish. Fine Glass Polish is for mild spots you normally see on your windshield, sunroof and side glass. Spots that are visible but hard to feel with your fingernails. For water spots that normally occur on shower doors and that you can feel with your fingernails, we've introduced Glass Polish. It has more polishing compounds for heavily calcified deposits. Use either one periodically and your wipers will last longer! Both products may be used by hand with our Cotton Polishing Pads or with our Machine Polishing System and Glass Polishing Pads. With our Machine Orbital you'll be amazed how fast your glass gets clean. For uncoated glass only. Enjoy crystal clear perfection.