uxcell Grit 200/800 Boride Grinding Oilstone Millstone Whetstone 150x20x5mm Product Name : Abrasives Grinding Oilstone;Granularity : 200 Grit, 800 Grit Material : Abrasive, Resin;Overall Size : 150 x 20 x 5mm / 5.9" x 0.8" x 0.2" (L*W*T) Color : Gray Weight : 50g Pakcage Content : 1 x Abrasives Grinding Oilstone1 x Plastic Base