[...] Putting it together requires 2 people as well as plenty of zip ties to hold the sides securely.  The wiring is flimsy, the bottom tray doesn't sit level, & the benches don't hook securely & also must be zip tied. The larger kittens we had planned on putting inside were much to active to keep safely inside instead we are using it for kittens that are to ill to be very active.  There are several manufactoring defects, some that don't cause problems & some that may in the future.