It is convenient to receive the grinder grinding power with this dosing ring. dosing is wear resistant and corrosion resistant with the stainless steel material and surface polishing process.The is a replacement part for espresso machine with 54mm .Can be used with Italian , suitable for most 54mm commercial machines( for breville).Item : Dosing Cup : Rust ant, Coffee Machine , Easy to Installsize:8x7cmMaterial:metalcolour:SilverPackage Contents:1 x Coffee Dosing Cup the above package content, products are not included.Note: shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.