SUNMIGHT 6″ X 6 HOLE 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. An added bonus, since these discs are on a film backing they are able to be used when either wet or dry sanding. Disc is 6″ x 6 Hole. Product is sold by the box of 50 discs.