The Arbortech Contour Sander is an attachment tool for sanding deep profiles, contours and detailed wood work. The random orbital sanding action combined with the patented flexible backing pad creates a perfect finish without scars, scratches or blemishes. The Contour Sander will mold to the shape of your wood project for effective sanding of shaped and sculpted forms. Giving you more control over the finish of your project. The 3-1/6" shaft means you can reach into deep hollows that would otherwise be difficult to reach. Change from aggressive sanding to light sanding quickly and easily with a variety of sanding discs available. This purchase includes: 1 random sander attachment, 1 backing pad, 1 spare flange and screw, 5 (80 grit) sanding discs, 5 (120 grit) sanding discs, 5 (180) sanding discs, 5 (240) sanding discs, 5 (320 grit) sanding discs, 5 (400) Sanding discs, 5 (600 grit) sanding discs.