Save Money - Since grinding the material makes it more potent, you'll use less of it and get the best effects. Faster - Grinding literally takes half the time it takes to grind by hand. ALL RIGHT - Aircraft grade aluminum and high quality wood, precision machined on computerized machines. - Four-piece grinder with micron stainless steel mesh that filters out pollen. - Optimal size 2.5 inches, grinds a lot in one go. - Super sharp, well designed teeth, correctly positioned for better grinding, won't tear or shred. - Powerful neodymium magnets keep the lid in place and leftovers stay fresh and odor-free. - Textured over wood for better grip when grinding your own. - Balanced weight, correct size and thickness of burr and teeth. - Sturdy and reliable, lasts forever. - Quiet, smooth, silent grinding. Note: 1. This grinder cannot be used to grind most spices into powder. 2. If you want to grind the spices finely, you can invert the grinder and grind them a little more so that the spices do not fall out sooner.