Feature: 1. Hand Sanding Tool: The 400 x 70 mm hand sanding block is an exceptional tool, suitable for home cleaning, drywall sanding, rusting and paint removal, and woodworking projects. 2. Dust Collection Feature: This sanding block includes a dust collection function, connecting to vacuum systems for a cleaner work space by minimizing dust generated during sanding. 3. Flexible Curve Adjustment: Adjustable curvature allows you to set the sanding block to flat, concave, or convex appearances, ensuring your sanding stays accurate and efficient throughout the project. 4. Robust Structure: Constructed from ABS, nylon hook and loop backing, and sturdy steel, this lightweight sanding block is easy to carry and designed for a life time of use. 5. Hook and Loop Backing Design: Featuring a hook back design, this hand sanding block ensures quick and secure paper installation and removal, compatible with standard hook and loop sandpaper sizes. 6. 10Pcs Paper: Suitable for 2.75 x 15.75 inch hook and loop sandpaper; A 2 3/4 inch wide long board hand polishing block is the standard width for long board filing sandpaper; 10 sheets of 80, 120, 180, 240, 320 grit sandpaper, 2 sheets of each type can meet most of your polishing needs. Specification: Item Type: Longboard Hand Sanding File Block Material: ABS, Nylon, Alloy Steel Applications: Designed for home cleaning, drywall sanding, fine sanding, rusting and paint removal, car repair and paint shops, woodworking and furniture manufacturing, metal fabrication shops, and other household and craft projects. Board Size: Approx. 400 x 70mm / 15.75 x 2.76in . Package List: 1 x Long Board Hand Polished Filing Block 10 x Sandpapers