Material and size: The surface of the hunting toy ball is made of silicone for a comfortable touch, don't worry about your cat's paws scratching. The diameter of the ball is about 2.3 inches and the length of the rope at the end is 13 inches, with a slight elasticity that makes cats think it's a flexible smart mouse and get interested in chasing and hunting. This indoor automatic light rolling toys balls not only for large and small dog and cats but also for other playful and active pet. Three working modes: Press and hold the power button for 2 seconds to turn on the device. Short press to switching working mode. Fast working mode (blue lights) move fast on high rug, suitable for active kittens or adult cats. Slow working mode (purple lights) moves well on floor, suitable for timid or older cats. Interactive working mode (yellow lights) only moves when touched by the cat, can be good play with your cat when you are not at home Importance Tips Of Charging: Each toy ball comes with a charging cable. Cat ball work work five minutes will enter standby mode, the indicator light flashes twice a minute, if the cat does not play after thirty minutes will automatically shut down. Full charge powered can be used for a long time Dogs Cat Boredom Toys: rechargeable automated rotating little round toy balls makes a great Christmas or birthday gift for your cute pets! Mouse simulation exercise energizes and interests cats and makes them less bored when they are home alone, make your fuzzy cat feel really stimulation happy and funny and crazy about it! The cat ball will be entangled in hair or wool during use, it needs to be cleaned regularly otherwise it will affect the flexibility of the balls Automatic Obstacle Avoidance: The cat toy ball automatically avoids obstacles, changes direction and spin automatically when it hits a wall or drills into a dead end, and doesn't get stuck, allowing cats to play freely!spinning. It rolls fast and nimbly on smooth floor and moves slowly on furry plush carpet inteligente mobile powerball with a retractable rope, with the ball rolling repeatedly flopping and wiggly to simulate the movement of the snake's tails to attract cats to chase, training the nature of the hunting, enrichment cat fun. Can be rolled in different venues such as tunnel, track, fluffy mat, bed, tiles and so funny