Cast iron hand coffee mill, DIA model. I purchased it about 15 years ago, but it has been in storage after being used less than 10 times. Coffee grounds and aroma remain as it has been used a few times. It's quite heavy because it's made of cast iron. Grinding beans with this will produce a different flavor and aroma. Since it has been used infrequently, I believe the internal mechanism is also in good condition, but please try grinding beans after purchase. - Brand: Kalita - Model Name: DIA coffee mill - Color: Black - Material: Cast iron - Features: Hand-crank Thank you for looking.