Habitrail OVO Maze is a fun add-on that comes with an interactive chewable maze that allows you to hide food and treats for your hamster to forage. It provides hours of fun for your hamster. The dual retractable locking doors provide easy access, simple cleaning and a safe secure environment for your pet. The deep clear base keeps bedding and other materials securely inside. The Habitrail OVO Maze is designed to expand with your imagination. With two expansion points, the Maze is the perfect add-on to a Habitrail OVO Suite or Habitrail OVO Pad Unit.