The Large 2-Tiers Acrylic Clear Hamster Mouse Deluxe Palace House Habitat is a great addition to any home. This habitat features two acrylic clear mouse houses that are expandable and customizable. The top wire opening access door provides easy ventilation and cleaning, while the front opening access door allows for easy entry and exit. The large running wheel and water bottle tower make it easy to keep your mice entertained, and the included food bowl and hide house provide extra bedding and playtime opportunities.