Fast efficient shipping. No hassle! Love this cage for our rat rescue sanctuary ( PeterPan's Mischief Manor) <--- join us on Facebook. I have a double cage that is the older version. It required a lot of screwing in and tricky ways to hold it to get it together.  This double cage from Wayfair goes together smoothly and my husband did it HIMSELF in under half an hour.  Thanks for a great product and being such a great company!Sincerely,All the ratties at PeterPan's Mischief Manor