70 mm replacement burrs for Mazzer Robur.
These are an Italian made aftermarket part.
Please note that this is 70mm , not 83mm as in the description, and it is clearly a generic burr, not a mazzer branded burr. But still for the price it is quite a good deal and was just what I needed for my diy handgrinder project. So 4 stars since a genuine mazzer might be twice the price.