3M™ Pro-Pak™ Aluminum Oxide Sandpaper for use on paint, wood and metal. Flexible "A" weight backing for dry sanding of painted wood and metal. Sanding sheets are packaged 25 per box, packages are tri-lingual and die cut for customer convenience. 25 count Size: 9" x 11" Grit: 180 Tough, durable aluminum oxide coating. I