1. Perfect Size of Sanding Tool: The base of sand round block for auto body fits perfectly with any 5 inch sanding disc, making it easy to change discs. The top of the block sander automotive is round for extra grip and even control. 2. Quality Round Wood Sanding: Our sanding block sandpaper for crafts is made from tough polyurethane foam (PU) - these hand tools automotive sanding block set have high quality hook and loop base which is flexible and also very durable and lightweight. 3. Hook and Loop Sanding Disc Base: Hook loop backing plate function for quick pad change, prevents pad displacement and rotation, loop with hook allows for easy removal of the abrasive disc sanding block without general wear. 4. Sands & Surface: The drywall finger sander for crafts are the ideal innovative sanding block companion with slightly angled sides Hook and Loop Hand Sanding Pad . This small hand sanding block will come handy when you require neat and elegant finish of the surface.