I have a Ferret Nation add on for sale. This is not actually the add on. I purchased the two story Ferret Nation and I no longer need both sections so I am selling the upper section. It includes the cage, shelf and ladder, drop down ladder for access to lower cage and tray with cut out for the drop down ladder. The cage is in good shape but the tray has been chewed a bit around the edges. Not chewed so bad that it takes away from its ability to function (no gaping holes or anything). I will try to post pics but if you want to take a look I can easily send you some pics. Do I have any takers?