The blades crush dried herbs and spices without any problems. Thanks to the removable cap the grinder is easy to refill. The lid seals the aroma of the herbs. Material: Stainless Steel / Acrylic Size: Diameter Ø: 4.5 cm Height: 9.5 cm Pack contains: 1 AdHoc Schuhbecks Herbs and Spice Grinder, Stainless Steel / Acrylic, 9.5 cm, AS06