Complete Types: These 125mm discs with 8 holes grip the sander from the back, 8 holes are designed for efficient dust extraction, aluminum oxide on the front is ideal for a smooth finish, Sanding Discs Almost all polishing requirements are met. High Quality: This sanding disc is equipped with a thick Class D paper base, made from aluminum oxide abrasive, durable and anti-static, the polished contact surface is larger and the effect is better, sanding discs made of high-quality alumina sandpaper, with special heat treatment, have excellent polishing, good choice for sanding and polishing. Easy to Use: This 125mm sanding disc has a high-strength resin bond system that increases the service life, durable reverse Velcro makes changing sanding discs easier and more practical; Hook and loop backing for faster mounting, easy and quick to stick, strong and durable, does not fall off once installed and used, easy to install and remove. Sanding Discs Wide Application: The sanding discs apply to