USAGE:The polishing pads Can be used wet or dry, less harmful dust, and less heat is generated by hand polishing, so no need of coolant. REMIUM QUALITY:Aggressive and durable diamond abrasive tools, not easy to separation between the sanding surface and the foam, It never leaves dye on the surface of stone during working and has good polishing effciency. APPLICATION:The flat abrasive pads widely used for glass polishing, granite polishing, concrete polishing, marble polishing, terrazzo polishing, engineered stone polishing, travertine polishing, and nearly any other kind of materials surface and edges. SPECIFICATION: Size 90 x 55 / 3.54" x 2.16", Light weight and foam backed,suitable for hand holding. ITEMS:Electroplate hand polishing pads 60, 120, 200, 400 grit,resin hand polishing pads 800, 1800, 3500 grit(coarse to fine sanding and polishing).Grit Number: 400. Item Weight: 0.22 Kilograms. Compatible Material: Glass,stone. Grit Type: Coarse,Fine. Brand: Z-LEAP. Grit Material: Diamond. Material: Diamond. Date First Available: May 10, 2018. Best Sellers Rank: #70,747 in Arts, Crafts & Sewing. Customer Reviews: 4.4 out of 5 stars 77 ratings 4.4 out of 5 stars. : B07CZF1CY7. Batteries Required?: ?No. Batteries Included?: ?No. Grit Description: ?Coarse,Fine. Grit Rating: ?400. Item Package Quantity: ?7. Material: ?Diamond. Style: ?7 PCS Mix/Set. Color: ?Multicolored. Size: ?3.54" x 2.16". Is Discontinued By Manufacturer: ?No. Item model number: ?SC02011. Country of Origin: ?China. Package Dimensions: ?5.35 x 5.31 x 4.17 inches. Item Weight: ?7.7 ounces. Part Number: ?SC02011. Manufacturer: ?Diamond Technology Co., Ltd.