Beautiful Color Ball Toy for CatsIdeal throw ball toy set for cat playing,these ball is bright color and light weight made,the colors is easy to draw your cats attentions,the ball is small and smart to play a throw game with cats,the interactive ball toy are easy to carry for indoor and outdoor activities.to have a great fun when playing with your cats. Animal Sounds SimulationsThe cat interactive toys were battery built in it,it can make the Squeaky Ball sounds as frog(blue), cricket(yellow) and bird chirping soundpink); the animal sounds occur when your cats touching scratching and hitting the balls, the natural animal sounds will make your cats very happy and excited when playing with them,its like them find a new friends around them,each ball inside battery can be used 10000 times sounds on lifetime. Refillable Catnip Toysthe lid of the chirping ball can be easily removed and then you can add some catnip in it, which will make your cats pay more attention to the balls; And the ball with catnip will give much fun playing experience to your cats.a pleasure toy set to keep company with your cats. Safety Cat Traning ToysThese cat hunting toys are made of high quality and durable EVA, soft and safe for cats.brightly colored to make it easier to draw your cat's attention,EVA ball is durable and not easy to bite broken by your cat. Package Included1 Pack of the sound balls in one box,the ball diameter is 5cm (1.97in).