This grinder is small and sturdy! Its compact size and metal body makes it ideal for travel. It features a non-slip bottom that helps to stabilize the the mill while grinding. All of our manual coffee grinders use burrs made of ceramic - conical ceramic burrs transfer less heat and shave coffee beans versus cracking them like blade grinders. This process also provides a more consistent grind that can easily be adjusted and set for repeat use. MSA-2-BMSA-2-HSV Color: Black, Silver W145 x D52 x H200mm Capacity: 1~2 Cups Materials:Handle: Aluminium Diecast, PolyplopyleneLid: Methacrylate ResinWasher, Shaft Cover, Inner Burr Holder, Grind Adjustment Knob: NylonInner Hopper, Inner Bottle: ABS ResinOuter Hopper, Outer Bottle: Aluminum AlloyShaft, Spring, Grind Adjustment Nut : Stainless SteelBurr: CeramicNon-Slip Base: Silicone Rubber