Total 31 pieces Type of grit: 40 grit / 60 grit / 80 grit Each grit 10 pieces Suitable for electric drill, grinder and other rotary tools.Torque spiral design can provide high flexibility and long service life. Durable, heat-resistant, moisture-resistant, anti-static and anti-clogging, designed for high-speed sanding and heavy-duty removal.Ideal for grinding, material removal, chamfering, blending of welds, deburring, rust removal, cleaning and finishing on stainless steel, aluminum, concrete and many other surfaces. The package includes: 31Pcs Assorted Flap Discs. Assorted pack of 40/60/80 grits to meet your polishing needs from coarse to finest.Blue colorSize: 50mm in diameterlucky meetNote: The data is manual measurement, please allow 1-29cm error, due to differences between light and color. screen, there will be a certain color difference, the specific received in kind prevail.