Visible Diamond Concentration. 9 Pcs Pack Professional Grand Diamond Grinding Shoes For LAVINA Grinding Machine. High Quality Diamond Material For The Excellent Performance Extra Soft Bond Segments For Grinding Extra Hard Floor, 1 Or 2 Segments Are Optional Special Design Different Segment Shape From Aggressive Grit to Fine Grit 12mm Segment Height, Long lifespan, Good Value Wet & Dry Use Professional Grade Diamond Grinding Shoes, Magnetic style for LAVINA Floor Grinding Machine. Extra Soft bond for Extra Hard Floor. Perfect For Fast Removal Of Coatings such as Glue, Epoxy, Paint, etc. Fast & Aggressive Grinding Concrete, Terrazzo, Stone Floor. 16Grit - Arrow Segment 25Grit - Rectangle Segment 40Grit - Oval Segment 80Grit - Oval Segment 150Grit- Round Button Segment