Material: The random orbital sander adopts high quality alumina abrasive, which is specially heat-treated for excellent polishability, sharpness and wear resistance. Durable and anti-static, it is a great choice for sanding and polishing. 8-hole design: The 8-hole design helps eliminate dust. The 8-hole thickened paper base ensures that the sandpaper is not easily crushed during polishing. This prevents the sandpaper from being damaged and damaging the grinder. EASY TO USE: Velcro closure, easy and quick to apply, sturdy and durable, will not fall off during installation. Easy to install and remove. Simply attach the round sanding pad to the machine, eliminating paper changes inefficient and time-saving abrasive. Various sanding pads: you will get 60 round sandpapers, diameter: 125mm/5 . 6 capsules (40/60/80/100/120/150/180/240/320/400) for all your needs. From coarse to fine, we can meet all your needs. Wide range of uses: suitable for grinding, polishing and removing rust from metals and non-metals, wood, rubber, leather, plastic, stone, glass and other materials. Also suitable for professionals only for amateur do-it-yourselfers and home lovers.