3M Pro Grade Precision Faster Sanding Sanding Rolls contain NO-SLIP GRIP backing and premium mineral technology found in CUBITRON II Industrial Abrasives, providing longer life, less effort and less hand fatigue than conventional sandpaper.|NO-SLIP GRIP backing and durable materials help reduce hand fatigue|Premium mineral grits are made with technology found in Cubitron II Industrial Abrasives|Suitable for wet sanding and dry sanding|Sandpaper colour will not discolour the surface you are sanding