New Interactive Rolling Dog Ball: This interactive dog toy is suitable for all dogs,dog toys to keep them busy when bored, stimulating their hunting instincts, and aiding in their exercise and activity. Active Rolling Ball for Dogs: This interactive rolling dog ball features a twistable, secure shell that doesn't easily come off, with added rope space that enhances the fun of playing. It is ideal for grabbing and tugging, and the moderate sound it emits can excite and energize the puppy. Interactive Dog Toy Keep Dogs Busy: Electric Rolling Ball Dog Toy Built-in intelligent motion sensor and automatic obstacle avoidance system, when the dog ball encounters obstacles or narrow spots, it will reverse itself and move away. Electric Dog Balls for Dog/Cat: A rapid 30-minute charge provides up to 6 hours of non-stop action. Forget about constant battery replacements our rechargeable design keeps the fun going and saves you money in the long run. Smart Dog Cat Toy Ball: Active rolling dog ball is designed for active or small medium dogs, puppies. An automatic dog toy for boredom and stimulation. Not for large chewers.