- Easy to Use: The adjustable radius flex longboard hand sanding file block is designed for comfort and efficiency. Its lightweight design enhances maneuverability, while the larger contact surface and comfortable grip make sanding tasks effortless. - Durable Material: Constructed from lightweight polyurethane foam, this hand sander is built to withstand rigorous use. It significantly improves work efficiency for drywall professionals and DIY enthusiasts alike. - Versatile Features: This sanding block allows for flexible adjustments to accommodate various levels and concavities. It features a rotating handle for ease of use and a groove on the back for added functionality. - Size and Compatibility: Measuring approximately 7 cm x 40 cm, this sanding file block provides ample surface area for a variety of sanding tasks. It is compatible with 70mm mesh sand or two sheets of 70 x 198mm sandpaper. Applications: 1. Ideal for drywall finishing, ensuring smooth surfaces and professional results in your home renovation projects. 2. Perfect for sanding curves and edges in woodworking projects, allowing for precise shaping and finishing. 3. Great for automotive refinishing, providing a reliable tool for achieving a flawless paint finish.