Features: automatic rollerball for dogs,Interactive dogs Ball Toy,Interactive Cat Ball Toy,Automatic Moving Ball Cat Toy,Cat Scratcher toy,Built-in sensor allows to sense obstacles and automatically adjust the direction, no need to worry about getting stuck in certain place. motor makes it run perfectly for all floors like carpet, wooden-floor and concrete floor. random mode moving for all pet. Lazy, aggressive chewers, sensitive or silent cat Scratcher toy, their instincts to hunt will kick into action,improve cat interest in playing. Multicolor fleece detachable coat replacement,easy to cleaning.No toxic environmental friendly Anti-collision abs-resin wheels, effectively reduce noise, Kitten Ball Toy portable when going out or travel, pet can be playing freely indoors or outdoors. Specifications: Material:ABS,fleece Size:Approx. diameter9cm/3.54in Color:Multicolor Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Interactive Cat Balls 4xCoat