Size and quantity: 6 Inch (152 mm) 150 Grit sanding disc; package contains 100 discs. Longlasting and durable: Made with aluminum oxide abrasive for sharpness and durability, delivering efficient and longlasting sanding. The flocked surface adds softness to help reduce scratches during sanding. Hook and loop backing: Backing uses a hook and loop design for quick connection to the sander back plate, preventing shifting or falling off during use. Easy to remove and . Efficient performance: Nonporous sanding discs provide a continuous surface, even pressure distribution, tear resistance, and clog prevention for a longerlasting, uniform finish and improved sanding efficiency. Use scenarios: Woodworking and furniture finishing: smoothing raw wood, removing finishes, and preparing surfaces between coats. Metal fabrication and automotive prep: deburring, surface smoothing, and prep work before priming or painting. General refurbishing: suitable for projects requiring consistent, reliable sanding across various materials.