Description: The dosing rings is your good companion of coffee, which is more convenient and easy to use and greatly saves your time and money. Made of high quality aluminum alloy material, the service life is longer. And it's easy to wash. Features: 1. Made of high quality aluminum alloy material, which is sturdy and the service life is longer. 2. Exquisite workmanship, the edges are glossy without burr. 3. Ergonomic design, comfortable and easy to handle. 4. Easy to use and wash, save your time and money. 5. The interior of the dosing rings space is large enough to accommodate more coffee powder at one time. Specification: Condition: 100% Brand New Material: Aluminum Alloy Size: Approx. 7.9 * 5.4 * 6.7cm / 3.1 * 2.1 * 2.6in Applicable: 58mm Color: Black Package list: 1 * Dosing Rings 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.