Description: Automatic & Interactive - The cat toys can roll around randomly and change directions automatically, provide furry friends with healthy exercise by playing. USB Rechargeable - No need to replace batteries of the cat toy, just simply plug in the cable for 1 hour, provides your kitty up to 8 hours for fun time. LED Lights - The cat wicked ball bulit in LED lights. It’s shining and twinkling to fully stimulate your kitten’s attention. Keep Cat Healthy & Fit - This automatic kitty toys ball is a funny toy for your cats. keeps your cats interested to chase and exercise, the rolling cat balls help to keep cats physically fit and mentally active. Keeps furry babies happy and healthy. Attention - The smart interactive cat toy ball rolls best on hard floor, tile floor and thin carpet, but it might not roll well on thick carpet. Please purchase with attention. Specification: Material: Felt, Plastic Size: diameter - 42mm/1.7inch Package Includes: 1 Piece Cat Toy Ball