I bought this ladder, for my syrian hamster to get from platform to platform. It arrived quickly, I was slightly disappointed when opening it because it wasn't as long as I'd thought it would be and is a little difficult to minipulate. My syrian hamster, Pippin, loves it and uses it all the time, we have only attached two hooks to the bars of the cage and took the other two off, worrying that she might chew on them or hurt herself. What I will say is you need to make sure the ladder is flat and not too upright or bent as the hooks are not that strong. If you were to hang this ladder from anywhere in the cage, without support, it would not be safe. All in all I'd say it was a good product, Pippin doesn't even chew it up.