Gator Grit 3 Pack 9" x 11" 120 Grit Sanding Sheet. The 120 grit sandpaper is ideal for light surface preparation and smoothing of raw wood, drywall, fiberglass and metal. Use these sheets for moderate surface leveling. These sheets are step 2 of the color coded step system and used for sanding. The sheets are durable and flexible allowing you to hand sand with ease and will resist cracking and grit loss when being folded.