Entices birds to play with its hypnotic design Easily attaches to any wire cage Ideal for parakeets, cockatiels & similar-sized birds The Activitoy Hypno Wheel entices birds to play with its hypnotic design. The many tiny knobs are perfectly sized to allow small beaks to spin the wheel. As it moves, the bell rings, and two silver beads rattle around inside of the wheel. Parakeets and cockatiels and similar-sized birdswill love this wheel of fortune and fun! Easily attaches to any wire cage.