58MM coffee powder dosing ring is appropriate for Eureka Mignon MMG mechanical device handles. Simple design and lightweight, saving coffee powder and saving time, sensible to use. The magnetic ring improves the stability and effectively prevents powder from spreading. Made of aluminum alloy material, which is safe, non poisonous and sturdy in use. It is simple to operate and simple to place powder, extra simpler to observe powder quantity. Material: Stainless metallic colour: B-Black Package Contents: 1 x 58mm integrated espresso rotating ring Only the above package content, different merchandise should not included. Note: Light reflection and sundry exhibits could cause the colour of the object in the picture a little bit diversified from the real thing. The measurement allowed error is +/- 1-3cm.