Premium Ceramic Materials: 150mm sanding disc is made of pure ceramic, each disc is meticulously crafted to withstand rigorous use, ensuring longevity and consistent performance. It cuts 30% faster and has 30% longer life than other aluminum oxide abrasives, good choice for material removal and surface finishing. Hook and Loop Backing: Durable backing has good adhesion and can be perfectly attached to the orbital sander. 150mm sanding disc with hook and loop backing for quick installation and removal, will not fall off when using, allowing you to focus on your project rather than dealing with managing bulky sandpaper. Compatibility and Dust Removal: The sanding discs are suitable for all 6 inch sanding machines on the market. The 150mm 15-hole sanding disc of the sanding disc improves the discharge speed of abrasive debris when sanding, giving better dust removal results, greatly improves the polishing life. Easy to Identify and Apply: The grit numbers are clearly printed on the back of these sanding discs, easy to identify and use. Meanwhile, whether you want to refinish furniture, smooth rough edges, or prepare surfaces for painting or staining, these discs offer the versatility and flexibility to tackle various sanding projects with ease. Package Content: The 150mm sanding disc comes in grits: 150 grit, 50 pieces in total. You can select the appropriate level of coarseness for their specific sanding needs. The smaller the number, the coarser the grit, the larger the number, the finer the grit.