Product supposedly designed with small animals(rats,chinchillas,etc.)but company still puts dangerous accessories into cage. Wire ramps which can break legs,entrap animal, and plastic slide in pans which everyone knows any rodent will chew plastic and it is harmful for them.The smaller wire spacing seems to be the biggest change and it is good for small pets.It is a bit frustrating though as it is hard to give scratches or pet your animal through the wire. A big plus to that spacing is that other animals(ie cats) have a harder time too!Overall thought I still recommend the Ferret Nation line