1. The 2UUL Base Tune Double Sides Metal Polisher is a dual-grid metal tool designed for edge preparation and maintenance 2. Dual-Grid Design: 400 grit for rough polishing, 1000 grit for fine polishing 3. Suitable for daily blade maintenance and precision edge care 4. Compact and portable for easy storage and use 5. High-quality metal construction for long-lasting performance 6. It offers both rough and fine polishing surfaces, making it ideal for daily blade care and precision sharpening 7. Compact and durable, it is an essential tool for professionals and enthusiasts alike