Paper lining: Thick E paper lining can differentiate sandpaper from other markets. Not easy to tear or wear while working Hook and loop design: The popular hook and loop design can be installed quickly; coupled with the Nylon Sticker, you can complete the work easily and quickly High-quality materials: these particles are made of calcined alumina particles to that the most suitable particles match different grades of coarse sand Longer durability: The high-strength resin bonding system can extend the service life of sandpaper packaging; the flannel tensile strength test exceeds the standard value of 1.47N Material: Alumina color: red Shape: square Size: about 95 x 186mm Granularity: 80#120#180# Number of holes: 8 holes Supporting technology: hook and loop Specification tolerance: +/- 1mm Note: This sandpaper is used for dry grinding, do not use for wet grinding. Please store the sandpaper bag in a dry and ventilated place. Humidity damage its service life. Package Contents: 20 x 80# sand paper 20 x 120# sand paper 20 x 180# sand paper Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.