1. Good grip, good force 2. Stainless steel base presses evenly and effortlessly 3. A good helper to the perfect coffee 4. Perfect filling of the pressure channel is one of the necessary conditions to extract the perfect espresso. and high quality Made of high quality 304 stainless steel, durable and practical. Easy to install,which is convenient to use. A necessary tool for handmade coffee. Specifications: Item type: Dosing ring Colour: silver Material: 304 stainless steel Size: 75 x 13mm Package Contents: 1 x Dosing ring Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.