I got a aluminum one off of Ebay to my door $15 and used it for the first time last night. WOW theres no going back. It really fluffed up my herb almost to a powder, way more ground than cigarette tabaco. What I noticed in 2 hits and through out the J is that how even it burned, like a wick or punk each hit would burn sides/center and all inline just very very nice. Rolling is much easier to with fine ground herbs. All I can say to anyone reading about grinders who doesn't have one and just thinks - Yea they look ok .... GET ONE You'll love it. With Ebay you don't have to pay an arm and a leg it comes right to your door for a very reasonable price. Mine is a SpaceCase copy -Aluminum with Diamond shaped Teeth, knowing what I know I'd pay $75 for one still and since they last so long.