Lot contains 8 packs of 50 new Rhynogrip SIC grinding discs, with the following specifications: Diameter: 150 mm Grain size: 50 (gravel sanding) Attachment: Velcro (Grip system) Abrasive: Silicon Carbide Backing: F-wt paper with velour These grinding discs are suitable for heavy grinding of materials such as wood, glass, stone, composite and metal. They have high initial cutting ability, anti-static treatment and reinforced binding, providing rapid material de-effect and reduced clogging. All packages are unused and in original packaging.