Feature: 1. Quantitative consistency can be achieved on multiple filters at the same time. 2. Ground coffee powder can be distributed and leveled on multiple filters at the same time. 3. Using high‑quality stainless steel material, safe and durable, easy to clean, just rinse with water. 4. The coffee powder ring is an essential tool to reduce coffee powder spillage. 5. Help to make better coffee in a more effective, accurate, clean and simple way. Specification: Item Type: Dosing Ring Material: Stainless Steel Uses: Coffee Powder Dosing Diameter: Approx. 54mm / 2.1in. Package List: 1 x Dosing Ring Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.