Those open tops are very dangerous. Please take caution.
You are right i actually have a dome top that opens at the top for Sierra and you can place a perch in the middle of the opening. The perch got knocked out once and i have never used that feature of my dome top again, i figured if the perch came loose the cage could come slamming down on Sierra severely hurt her. I pinched my fingers in it and it hurt like crazy. I think dome tops can be great but i don't suggest one that opens at the top for play top use.
