Features Adjustable Curving: This adjustable longboard sanding block can be adjusted and fixed on flat, concave or convex surfaces, keeping the angular shape throughout the sanding process to quickly complete sanding jobs. RELIABLE & DURABLE - Made with high quality ABS base, nylon and steel velcro backing (inner material of the adjustment handle), this sanding board will last a lifetime, and the sandpaper can be replaced if needed. PERFECT HOOK DESIGN - The manual sanding block features a hook design on the back that works perfectly with standard sandpaper to connect and remove sandpaper quickly and safely. MULTIPURPOSE APPLICATION The manual sanding block is suitable for sanding, polishing, rust removal, paint stripping and other projects in the home, automotive, wood, metal and craft industries. Enjoy a fast and efficient grinder with this longboard EASY TO CARRY - Adjustable manual sanding block for longboard is lightweight, easy to carry and easy to store in a bag for convenient use. Specification: Item Type: Manual Sanding File Block Material: ABS Size: approx. 70 x 400 mm/2.76 x 15.75 inches Package List: 1 x Hand Sanding Block Package List 1 x Hand Sanding File Block