The plastic pieces aren't just broken, they've broken into multiple tiny pieces, which cannot be glued together. This bird cage was sold to someone else previously because they tried to glue it with the wrong glue. The bottom tray is not flat, so it cannot slide in and out. The door opens like a guillotine and the top door opens to the sky. Does the builder think a bird can fly straight up to the sky like a helicopter? Think about it! The quality of the plastic is poor and this cage would be better for a mouse or a rat.