Magnetic lid helps hold in place tightly and ensures herbs won't spill during grinding Made up of 4 compartments, including a scraper for cleaning leftover herbs Please do’t grind somethhing hard with this grinder, it will be damage your grinder teeth This Anpro new design grinder used concave top instead of flat top so that the materials would fall to the middles and get better grinded. The use of the sharp curved teeth makes grind being easier. With smaller hole the materials won't fall down to the next chamber too fast Package included: 1 x Anpro Spice Grinder Note: 1.This grinder can not be used to grind most spices into powder. 2.If you want to grind the herbs thoroughly you can reverse the grinder and grind them a little longer so that the herbs won't fall down before they were small enough.