Model: FS024 Features: 1. The mouse sandpapers are made of high-quality alumina abrasive and are uniform in particle size. 2. The mouse sander pads have different grades: 80 grit, 100 grit, 120 grit, 320 grit, 600 grit, and so on. 3. Our sander pads are perfect for sanding and polishing and meet your needs for different materials and applications.