This is a highly-rated Porlex coffee mill. It's a slim size, making it easy to carry, and allows you to grind coffee beans to a high-quality fineness whether you're camping, enjoying other outdoor activities, or at home. (Grind size adjustment is also possible.) It can grind about 30g, or about 3 cups, at a time. It uses ceramic burrs, so there's no metallic smell and no risk of rust. Disassembly and washing for maintenance is also easy. I purchased this new and stored it at home, but I'm selling it because I have a smaller size and no longer need it. A hand-crank coffee mill using ceramic burrs, suitable for everything from espresso to coarse grinds. - Brand: Porlex - Model Name: Ceramic Coffee Mill - Features: Ceramic burrs - Uses: Suitable for espresso to coarse grinds - Cleaning Method: Can be disassembled and washed Thank you for looking.