SUNMIGHT 8″ PSA FILM SANDPAPER DISCS – Designed for high performance. Use on tougher-to-sand marine paint, gelcoat and primer systems. Cuts fast, lasts long and leaves a consistent finish. Disc is open coat stearated, offers excellent cutting performance, longer-lasting life with powerful durability, and has perfect sanding surface. Disc is 8″ x NH. Product is sold by the box of 50 discs.