This herb grinder is so especial. It is different with others that usually using traditional herb grinder. More big and more heavy. However, this special herb grinder is more speciality and more comfortable. *The top lay just like traditional tobacco herb grinder, have sharp teeth and connect next room with strong magnetic stone that can smooth rotate and tightly seal the grind space. This grinder is made of aluminum alloy material that is durable and lightly.The second place have a magnetic accessory is plastic three claw agitator to uniform stirring grinding charge.Third piece equip 8 accurately circle funnel, and it also can store grinding charge. Fourth place is a loading space. The out side plastic part is a stopper that can stop the pre rolled cone drop down.