The RODY 3 range of hamster cages are sure to excite both hamster owners and small petsquestion. Innovative design features dual openings sides that allow a variety of tubing and fittings to be used to join different RODY 3 cages, and thus provide the hamster with a unique and exciting environment. All cages are offered in blue and red, so just pick the one that works best to the interior decor of his home.This evolving habitat for small animals is composed of two levels with all of the necessary equipment!