The hook and loop backing makes it easy to attach and remove the disc from a sanding machine, saving time and effort during the sanding process. The 15 holes provide effective dust extraction, keeping the work area clean and free of debris. Whether you are sanding surfaces for furniture, cabinets, or other woodworking projects, the PREM-CUT P500 150mm Gold Velcro Disc 15H is the perfect tool for achieving professional results. Upgrade your sanding capabilities with this top-of-the-line sanding disc.