This is the Hario 'Skerton' hand grinder. It uses ceramic, conical burrs and can produce a range of grind sizes for different brew methods. The grinder comes in two sections, with a rubber anti-slip base.
We have used these grinders every day at home for several years, and take them with us when we go travelling - it's neat, compact, durable and really simple to adjust. All parts of the grinder can be washed, and the ceramic burrs will never rust. It's a great grinder, and a great intro to grinding your own beans