Complete Types: These 125mm discs with 8 holes grip the sander from the back, the aluminum oxide on the front is ideal for a smooth finish, the sanding discs meet almost all polishing requirements. High Quality: This sanding disc features a thick, D-class paper backing. The 125mm sanding disc is made of high-quality craft paper with a good layer of aluminum oxide. The alumina sanding paper sanding discs are made of high-quality alumina abrasive, specially heat-treated, for excellent polishing, sharpening, and wear resistance. Durable and anti-static sanding discs, a great choice for sanding and polishing. Easy to use: This 125mm sanding disc has a high-strength resin bond system that increases durability, the durable reverse Velcro makes changing sanding discs easier and more convenient; Hook and loop backing for quicker assembly, quick and easy to attach, strong and durable, does not fall off during installation, easy to install and remove. Widely used sanding discs: Sanding discs