Description: Material: The ball is made of high quality ABS material, which is resistant and also ensures the safety of the cat. When it gets dirty, just wipe it with a damp paper towel. Automatical Obstacle Avoidance Function: automatic obstacle avoidance system, Ball will reverse itself and move away when it hits an obstacle or tight spots, no need to worry about the cat toy ball being stuck or lost. Bionic design: simulating the escape trajectory of prey, the 43mm diameter fits the cat's claws, which stimulates the cat's hunting instinct. Bring more fun and help your more indoor exercise. 2 ways to play: intelligent timing for 5 minutes, unlimited play, one button switching. 80mAh lithium battery, USB/Type C charging design is more convenient. Application: Designed for cats, kittens and puppies, not suitable for adult dogs. Specification: Product size: 43mm/1.69inch Material: ABS silicone Battery capacity: 80mAh Package Includes: 1 Piece Cat Toys Balls 1 Piece USB Charging Cable(6 Pack) Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!