Hook and Loop Interchangeable Assorted Shapes: Various shapes of chassis,chamfering, internal and external arcs, grooves and planes polishing.Polishing irregular planes such as concave and convex grooves, curved surfaces, flat surfaces, step surfaces, internal holes and other round-trip chamfering and polishing.You can quickly and easily change the shapes to suit your needs. Hand Sanding Block Set: This Sanding Block Set includes 16 sanding blocks in assorted shapes, each 3.8 inches long, made from a soft, foam PU material. The pad's hook & loop enable quick and secure sandpaper attachment and removal for optimal sanding disc life. Perfect Choice: The Hook and Loop Interchangeable Assorted Shapes that you can easily switch between different shapes, making it perfect for sanding tight corners or hard-to-reach areas.It is an essential tool for woodworkers, carpenters, and DIY enthusiasts. Wide Range Of Uses: Manual sanding blocks are widely used and have strong grinding ability. They can be used to grind irregular planes such as uneven grooves, curved surfaces, planes, stepped surfaces, and inner holes. Easy to use: With its soft and foam material and hook and loop interchangeable shapes, this sanding set is incredibly easy to use. You 't need any special tools or equipment to get started, making it perfect for beginners and DIY enthusiasts alike., Weight: 1.1684499886 pounds, Manufacturer: Htuteyy