This product is made by stainless steel, which is no deforming and wear-resistant, it is suitable for long time use. It is widely applied because it is suitable for most coffee machine, which is practical and useful. Made by stainless steel, which is rustless and long lasting. There are two sizes of cup's diameter you can choose from: 51mm, 54mm, 58mm. It is fit for 51mm/54mm/58mm handle, which is suitable for coffee machine. Item Name: Dosing Cup Material: Stainless Steel Feature: Practical, Wear-resistant, Reusable Size Details: Cup Rim Diameter: 5.1cm/2.01" (Approx.) Cup Rim Diameter: 5.4cm/2.13" (Approx.) Cup Rim Diameter: 5.8cm/2.28" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Dosing Cup(Others Not Included)