Material with PU Backing Plate: Constructed from flexible yet robust polyurethane, these sanding blocks reduce vibrations significantly, making your sanding process smoother and more comfortable, thus improving the quality of your work. Versatile Shapes and Sizes: This set includes 5-inch and 3inch round hand sanding blocks and one mouse-shaped block, complemented by a sturdy cleaning brush. Designed ergonomically, these tools are perfect for a variety of sanding tasks, enhancing your efficiency in home projects or professional tasks. Convenient Hook & Loop System: Featuring an easy-to-use hook and loop system, these sanding blocks allow for quick and effortless attachment and removal of sandpaper. This feature saves time and enhances productivity by making grit changes simple and fast. Multipurpose Use: Ideal for a wide range of applications including woodworking, arts and crafts, auto body work, drywall, and automotive tasks. These sanding blocks are essential tools for hobbyists and professionals alike, ensuring precise and efficient sanding., Weight: 0.4850169764 Pounds, Manufacturer: Aisuoka