Here is another cat cage you can put indoors or outside to give your kitties a safe place to relax and play. The PawHut Large Mesh Cat Cage has a solid metal frame with cloth and nylon mesh. It has enough space for 2 hammocks. They are detachable for easy clean up.
This cat cage measures 76.75″ L x 38.5″ W x 38.5″ H. You an find out more about it here.