Features: Made from premium aluminum, durable and practical. Easy to clean, just rinse with water. Cushy to install and convenient to use. A necessary tool for hand-made coffee. Suitable for 58mm Portafilters. Specifications: Condition: 100%Brand New Material: Aluminum Size: Approx.7 x 5.8 x 2.3cm / 2.8 x 2.3 x 0.9in(Black/Gold) Approx.7 x 7 x 2.2cm / 2.8 x 2.8 x 0.9in(Red) Color: Black / Gold / Red(Optional) Weight: 45g Fit for: 58mm Portafilters Package List: 1* Coffee Dosing Ring Notice: 1. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. 2. Please understand that colors may exist chromatic aberration as the different placement of pictures. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.