This 3M sanding disc is perfect for all your sanding needs. Made with high-quality Regalite, it provides a superior cut rate for maximum efficiency. Each box contains 25 discs, each measuring 8 inches and with a coarse 36 grit. The disc is designed with Hookit technology, allowing for easy attachment and removal. The green color indicates the type of abrasive used. This product is perfect for use in automotive shops, or for any DIY project that requires sanding.