58MM coffee powder dosing ring is acceptable 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 efficiently prevents powder from spreading. Made of aluminum alloy material, which is safe, non toxic and sturdy in use. It is easy to operate and easy to place powder, more easier to observe powder quantity. Material: Stainless steel colour: B-Black Package Contents: 1 x 58mm included coffee rotating ring Only the above kit content, diverse merchandise usually are not included. Note: Light mirrored image and various reveals may cause the color of the item in the picture considerably varied from the genuine thing. The length allowed error is +/- 1-3cm.