Features 1. Smart Ball Toys for Cats: Built-in sensitivity trigger, will make a simulated animal sound when the cat's paw touching the toy lightly. It is easy to draw your cats attentions. Light weight,easy to carry for indoor and outdoor activities, to have a great fun when playing with your cats. 2. Animal Sounds Simulations: The cat interactive toys were battery built in it, it can make three lifelike animal sounds as frog, cricket and bird chirping sound; 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. 3. Refillable Catnip Toys: The 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. 4. Safety Cat Traning Toys: These cat hunting toys are made of high quality and durable HIPS, soft and safe for cats.brightly colored to make it easier to draw your cat's attention, Cat Catnip Ball is durable and not easy to bite broken by your cat. 5. Reduce the Cat's Loneliness: When you need to work or go out for activities, the cat will feel lonely due to the temporary lack of company. This pet toy will become your cat's best playmate, helping your cat reduce loneliness and separation anxiety. While maintaining its mental health, your cat will fall in love with these little toys. Specification Material: HIPS Color: Blue, Pink, Green Size: 4.6 x 4.6 cm Weight: 25 g Battery: 3 LR41 Batteries Package Include: 1 Cat Catnip Ball Toy