Strip or scuff a wood surface in your business before refinishing it with the Scrubble by 20" sand screen disc! This disc measures 20" in diameter, and its 120 grit rating means it's suitable for fine sanding to prepare wood for finishing or to remove varnish and paint. Its durable, open weave construction is designed to prevent clogs from saw dust and other shavings, and each disc is made of waterproof resin and abrasives for consistent, long-lasting use.