30/40 Grit, 6S Soft Bond -- S series diamond ARIX segments are specifically designed for super-hard floors ARIX Diamond Type Segment. More diamond saving during the production process. Performance is superior to traditional tools Compatible for Lavina Edco Onfloor Grinders Concrete floor grinding and preparation. Wet or dry use Packaging: 9 PCS 30/40 Grit 6S Soft Bond Diamonds, Lavina Grinding Shoes Concrete Grinding Disc, ARIX Segment 30/40 Grit 6S Soft Metal Bond Diamonds for Super Hard Floor Preparation, Compatible with Lavina Edco Onfloor Grinder, 9PCS