Medium Vine Foraging Balls bird toy was designed using a diverse selection of stimulating bird-safe materials to ensure the mental and physical well being of pet birds. Its great for bids that forage and chew. It features various multi-colored vine balls and rings that birds will spend hours playing with. You can add your pets favorite treats inside for added foraging fun. This toy measures 6"x6"x11" and is best suited for canaries; parakeets and cockatiels.