DEWALT 1/3 Mesh Sanding Sheets last at least four times longer than traditional DEWALT sandpaper sheets. The fibres are drawn away from the surface into the small holes, and don't sit between the material to be sanded and the abrasive grains. This optimises the sanding effect. The dust can be drawn through the mesh sanding sheet across a wider area rather than being limited to distinct holes in traditional sandpaper. Its easier to use mesh sanding sheets, as there is no requirement to match a specific dust extraction hole pattern. The mesh sheets can be cleaned, removing the dust from the holes and bring the sheets back to a nearly new condition. It also makes using a sander quicker and easier by not having to use clip fastening associated with non hook and loop sheets. Ref: UTTK7368