Four unique natural materials for your bird to explore! The maple wood wheels (1/2″), pine wood squares (1/4″-1/2″ thick), and bamboo pieces will test your bird’s beak power, while the mahogany slices will provide a gentler contrast. This toy is perfect for medium and large birds such as macaws, amazons, cockatoos, pionus, and conures. The toy is approximately 10 inches long and 5 inches wide, but may vary due to the sizes of the natural products. It is strung on paper cord and available in 1 strand (small) or 3 strands (large).