A beautifully milled, aluminum grinder with CNC milled stainless steel burrs. The Timemore C2 differs from most hand mills in that it is not outfitted with a ceramic burr. Usually, this would be alarming due to the build up of static but dual bearings create a virtually static free experience! The black metal construction is both beautiful, extremely durable and skid proof if you are using a surface to place the C2 on when grinding.