I really don't like this pill crusher. It hurts my hands a lot and takes quite a bit of strength to use, which makes your hands get all ripped up by the bottom part of the crusher. And it doesn't even work well... I can see it being ok for small pills but I got them to crush larger pills (for my dog- the smaller ones I just put in his food and he eats it but can't do that with the bigger ones), I'm assuming a lot of people get them for similar reasons or people can't swallow really large pills, but this crusher doesn't work for that at all. And the dust from the pills gets all over the screwing part.