Mixed feelings. Unsuitable for small guinea pigs.
I purchased this run for our new 8 week old guinea pigs. On the positive, there is absolutely heaps of room for them to run about & once pegged into place & cable tied together feels steady. Now the negative. 3.5cm between bars is not enough to keep my guinea pigs in. Unfortunately, they both just walked through the bars like they weren't there at all. Fine chicken wire is not cable tied to the lower half... Also, almost impossible to catch them as run is not easy to access for an adult!