Yescom Large Parrot Bird Flight Finch Cage Macaws Pet Supply Aviary House w/Free Toy Powder-coated wire and Non-Toxic Epoxy finished for the safety of birds. Strong metal wire Bar that big parrots can not bend. Rectangular Tubes constructed Main Frame for more steady. Durable Snap Lock on front door for convenient access. Four durable swivel casters with two locks for mobility and fixing.