Auto-roll Function Design: The electric robot bugs for indoor cats has the ability to roll automatically, and turn when encounterinng obstacles, which makes it even more interesting and attractive for your cat Safe and durable materials: This cat toy is made of high-quality safe PVC material, non-toxic, perfect for kitten playtime. The sturdy structure ensures safety of use, and designed to withstand daily use Keep cats healthyIt is a wonderful toy for your cats. This cat interactive toys are keeping your cat active and agile. Helps promote healthy exercise and entertainment Instructions: The switch is under the insect's abdomen, after the switch is opened, it can walk freely. Changing the curvature of a bug's foot can change the way it walks. Push the bug's foot forward with your hand to make the bug go in a straight line or a big circle Package include: 2 pcs electric insect toys provided for the cat to play.