Specification Product name Aluminum Dosing Ring for Brewing Bowl Coffee Powder for 58MM Coffee TamperMaterial Aluminum alloyWeight approx 170gSize 7 6 7cm 2 8 2 6inchColor Black Silver optional Appliance 58MM Coffee Tamper Features 1 Made from high quality aluminum alloy material which is not only durable but also stable to use 2 Built to greatly strict quality control standards so it has a stable and excellent performance 3 2 colors to choose all of a nice appearance and superb workmanship 4 Suitable for 58mm coffee tamper providing you a better coffee making experience Package included 1x Aluminum Dosing Ring