Working on a boat? This 3M Hookit Marine Fairing Board is a pro-grade tool for sanding, fairing, and finishing fiberglass, gel coat, and other marine surfaces. The board is 4.5 inches wide by 30 inches long – a nice longboard that helps you get smooth, even results without waves or dips. It's lightweight with a two-level design and a raised handle for comfort and control during long sessions. Uses 3M Hookit abrasive sheets (sold separately) that attach securely and can often be reused, saving you money. Perfect for deck sanding, hull fairing, plug work, or mold finishing. Rated for industrial/occupational use, so it's tough. If you're a boat builder, repair tech, or serious DIYer, this board makes sanding big areas way easier and more professional. Just pair it with your favorite grits and get to work!