Looking for a high - quality sanding solution, Our sanding block kit is the perfect choice. Made of polyurethane (PU), it's flexible and durable. The kit includes 9 sanding blocks and 45 pieces of hook and loop sandpaper in various grits (40/60/80/120/180/240/320/400/600), a total of 54 pieces. With its hook and loop design, you can easily switch between sanding blocks and remove sandpaper. It can be installed on concave or convex surfaces for precise sanding of irregular areas, saving you time and money. Ideal for woodworking, auto body, drywall, and many other applications, it can handle even the most intricate contours and hard - to - reach areas. The comfortable handle reduces fatigue during long - term use, making your sanding tasks more efficient and enjoyable.