The Verdant toys are made to stimulate the natural foraging behavior of parakeets and parrots. Seeds of snacks can be added to these pure natural toys. Provides entertainment and prevents boredom Safe chewing materials promote dental wear Innovatively designed to meet key instinctual needs of birds Encourages mental and physical enrichment Great for shredding, chewing, foraging, and preening Size (Approximate): 4cm-8cm (6 Balls)