50 pcs, 6'' Sanding Discs, hook & loop attachement, Grit 320, Multihole Fast sanding with aggressive initial cut and high material removal rate. The unique coating repels dust, prevents clogging and pilling. Increased lifespan as the grains, a mix of ceramic and aluminium oxide grains, stay sharper for longer and exhibit less wear. Flexible premium paper with excellent grain adhesion. Dust extraction is optimised with multihole patterns