SUNMIGHT 6″ VELCRO 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 6″ x NH.