Set of 4 sanding sponges/blocks for wet and dry surfaces, super fine (Grade 320 to 400) sanding

MATERIAL: The sanding sponges are made from high-quality brown corundum, using high-density sponges as the core material. Useful and portable.

DIFFERENT SPECIFICATIONS INCLUDED: 4 medium-fine sanding sponges (grades 320 to 400) in total. Meets your needs.

WET AND DRY AVAILABLE: The sand block is washable and reusable, and can be used both wet and dry. It is convenient to clean, durable, and easy to grip; it doesn't tear easily.

WIDE APPLICATION: Can be used on wood, paint, metal, plastic, or drywall. Suitable for all kinds of small jobs, it can grind any irregular geometric or curved surface. Portable and convenient. A good tool for polishing or cleaning.

SAND BLOCK: 4 pieces.