Material - The cat toy ball is made of soft EVA Foam; lightweight balls--Cat Quiet Play Toys; The cats kitten and puppies can carry the foam balls around the house. 2 Colors - Comes 12 pcs in total, 2 colors, including 6 Red and 6 Blue cat balls. These cat rainbow ball toys are bright and vivid, can easily attract your cats' eyes and arouse their interest. Playing with 2 colors will make them more busy with the ball game toy. Size - 3.5CM dia, about 1.38 inches. Cats can pick them up in their mouth and carry them to wherever he/she wants to play. Great for fetching, training, chewing and teething. ATTENTION – The cat foam balls bounce slightly instead of a highly elastic. But your pets will love them very much. Cat Ball Toys for Indoor Cats - Great for interactive or independent play, easy to roll it and chase. Perfect birthday gift for cats.