A&E's 13120 Black Flight Cage Single Pack is the perfectly fit for your medium sized or multiple smallers birds. The 2mm wire construction has spacing than measure 1/2" between each wire. The wires on the front and back run vertical while the sides run horizontal. This cage features A&E's own bird-proof locks on the oversized front door and swing out feeder doors. Each feeder door comes with stainless steel coop-cups. This cage comes standard with a slide out tray under the main cage for easy clean-up, 2 wooden perches, 1 breeding door and a shelf built into the stand for storage. The 4 easy rolling casters make it easy to move around this 20"x31"x62" cage and stand.