1. Wide Application: This hand sanding block has a broad range of uses and can be applied for cleaning in home drywall projects, fine sanding, paint removal, automotive and paint shops, woodworking furniture, metal fabrication shops, and more. 2. Flexible Curvature Adjustment: This hand sanding block can be set as flat, concave, or convex depending on the angle of the surface being sanded. The longboard manual sanding block maintains this angle shape throughout the sanding process, ensuring the task is completed quickly. 3. ABS Block Base: This drywall hand sander is made of a quality ABS block base, which is sturdy and impactresistant, not easily damaged, and designed for longlasting durability. 4. Ergonomic Design: This dust extraction sanding block features a design that works seamlessly with standard hookandloop sandpaper for quick, secure attachment and easy removal of sandpaper.