Exercise Toys boost cardio, increase dexterity, agility, and balance – ultimately expending excess calories and help to keep pet birds in top physical condition. Installs in in or out of the cage, the HARI Smart.Play Bamboo Tower provides pet birds with hours of entertainment and exercise. The tower-shaped toy is made of bamboo, plastic beads and sisal. It’s strung together in a 3d ladder formation so companion birds will have fun climbing, hanging or simply chewing on it. The bamboo tower is easily installed/hung with the included lead & zinc free, nickle plated quick link and chain.