The JW Activitoys range designed for small sized birds such as Parakeets and Cockatiels. These Activitoys provide stimulation for the bird's mind as well as its motor skills. They keep the bird vigorous and healthy. Made of a tough plastic with a unique securing nut. Made with tough plastic and a secure nut design, these JW Activitoys provide your small bird essential mental and physical stimulation to stay fit and healthy.