Purchased this thinking it would be okay for my Grandaughter's dwarf hamster Pom Pom Ruby. However too small for her, and more to the point too narrow. Nice strong little ladder. Should have realised before ordering so my fault, and no reason to give it four stars.
Not very happy as I ordered it thinking it was much bigger, where as it's only about 15 cm and it's very thin, only suitable for dwarf hsmsters at a push. Waste of money because it was too small for the cage. The info didn't have any info about the size either. It's a good sturdy product though.