One side fell out very quickly
We bought this to allow our goos easy access to their hay rack. It's rather narrow, which causes a few fights and complaints if more than one degu wants hay at the same time and one of the attaching blocks came loose within a day of use. It might be that degus are too heavy for it as it wouldn't keep it's shape either, or maybe it was because they would jump on it rather than walk/run. Now I've converted it to a bridge since the loose side fell out by wrapping the strong wire round the bottom rung so that it won't be accessable by my goos and won't hurt them.