Material: Cotton / Metal / Plastic. Size: Length 40 cm / 15.75 inch; Diameter: 2.0 cm / 0.79 inch. Materials made from safe, non-toxic materials, all dyes are non-toxic and safe for your birds. Great chewing and preening toy, destructible toys satisfy a bird's instinctual need to chew. Perfect size for African Greys, Amazons, Eclectus, Small Cockatoos and Mini Macaws.