The Phoenician Medium Black Grinder is a high quality 4-piece grinder that is perfect to take on the go or to use at home. Phoenician makes top of the line, medical-grade anodized aluminum grinders that are second to none. With a quick lock design, you will never have trouble opening and closing your grinder, making it much easier to handle with normal use and buildup. The screen is replaceable (replacable screens sold seperately), and the grinder is built with diametrically cut, razor sharp teeth that sheer your herbs rather than cut, making this a highly functional piece you can use for years. If you are in the market for a new grinder, look no further than Phonecian!