Set of 12 Sandpapers, 4 Types, in a Waterproof Bag Size: 93mm x 230mm 9.3cm x 23cm Grits: 80, 150, 240, and 400. If you're unsure which grit to buy for sanding wood, this set is perfect for you. Use 80 grit for rough finishing, then 150 and 240 for medium finishing, and finally 400 grit for a smooth finish. Can also be attached to electric sanders. Please use for woodworking sanding. Caution: This paper is dry sandpaper for sanding wood, so do not use water for sanding! Discount and Mercari shipping available for 2 or more sets. 2 sets: ¥600 3 sets: ¥850 4 sets: ¥1100 Please comment if you would like 2 or more sets. Sandpaper #Sandpaper File Abrasive paper Waterproof sandpaper Waterproof file Waterproof paper #SandpaperWaterproof #SandpaperSanding #Sandpaper #Sandpaper Sandpaper Waterproof Sandpaper Set Dry sanding Sandpaper Set My Bachi Polishing Instant purchase available. Thank you. Please read my profile too.