Features rCompact Rechargeable: Portable design with easy USB charging, making it convenient to use anytime, anywhere. rTail Design: The attached tail mimics prey, adding an extra element of fun for your pet to grasp and play with. rBite Resistance and Durability: Soft and skin-friendly silicone winding, in addition to rolling quietly, increases friction and accounts for bite resistance and durability. rRobust Construction: Made from premium, pet-safe materials designed to withstand playful paws. rPhysical and Mental Stimulation: Encourage your cat's natural hunting instincts and provide both physical exercise and mental stimulation, reducing boredom and destructive behavior. rNote: r1.The actual color may be slightly different from the image due to different light effects r2.Please allow 1-3 cm deviation due to manual measurement r rSize: 55mm rBattery: 150mah r rPackage List: r1x Ball