We are the owners of two beautiful Holland Lop female bunnies. They mean the world to us and we always want what is best for them. That includes their living area such as inside their cages for example. We have been going through a few different pellet feeders since many of them have a very strange construction which makes the pellet or hay for that matter fall through and the food ends up on the floor and outside of the cage creating a mess. These holders are so and so, and it is not that it is a bad construction, not at all, but it is difficult to attach them to the cages and when it is done, there is a long piece of metal sticking straight out so if someone, human or other animal would walk by and be too close to the cage, believe me when I am saying that the metal piece will cause pain if you end up having it hit your leg or so. I had this happen to me so many times and after a while I decided to remove them both and just get rid of them. Sad though, because the rest of the holders are fine. This was a deal breaker in our home though, and we purchased other holders, much better and no sharp metal pieces sticking out anywhere. For this reason I can not recommend these holders. I mean, if you would put your cage against the wall or so where the metal piece sticks out i would guess you would be fine but I would not risk it. Two stars for this pellet holder/feeder.