A nice toy, it will light up when jumping and bouncing.This is a good stress reliever, suitable for indoor and outdoor playing.It is a good interactive toy.High Elasticity: The high elasticity dog ball can keep the dog chasing, which not only can make the dog exercise happily, but also can train the dog's agility to help it stay healthy and strong.Flash Ball: The colorful balls can better attract pets' attention. Your cat and dog can happily play with flashing balls even in dark places.Material: TPRColor: RandomBattery: Built-in Button CellQuantity: 1 PcSize:  S 5.5cm/2.2”M 6.5cm/2.6”Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1Pc x Pet Toy (No retail package)