High-quality cloth backing, multi-layer sanding discs, high quality hard zirconia abrasive grains. Long service life, high sanding performance, high work efficiency. 115 mm thicker and wider blades for easier sanding, so that larger areas can be processed easily. Compared to grinding wheels, it has the advantages of high grinding power, low noise level and uniform abrasive grain. Four different particle sizes are suitable for different surface treatments for paint, wood and metal, for sanding flat, sloped and inclined surfaces. Ideal for deburring, rust removal, paint removal, cleaning, sanding and polishing. Specification: Material: Hard zirconia abrasive grains Hole size: 115 mm x 22.23 mm Particle size: 40 / 60 / 80 / 120 Color: Blue Packaging quantity：10 Note: This product 10 for a set, the purchase of the product page marked with the model number shall prevail