JW Pet Insight Activitoys Double Axis Toy for Parakeets, Cockatiels & Similar Sized BirdsParakeets and other small birds require stimulation and exercise for their well-being. In its natural habitat the bird's keen mind, extraordinary sensitivity to his environment and physical prowess are all utilized in daily activities. ActiviToys are designed to meet your bird's natural need for physically and mentally stimulating activities. They'll engage his mind as well as his motor skills and help keep him vigorous and healthy. Durable plastic and metal toy attaches to any horizontal or vertical wire cage with a strong easy-grip nut. Pick more than one ActiviToy and change the selection in your bird's cage periodically to keep him interested and entertained. We've got a great collection of ActiviToys to choose from.