Pet Qwerks Blinky X- Tire Ball Dog Toy, Medium

X-Tire Balls are a pair of small tires ruggedly molded as a single ball with a hollow center; They're easy for dogs to retrieve; they have a fun rolling action; Theyre molded from Flexi PVC so they're durable, smooth, safe and fun; Have a red flashing Blinky Ball inside that turns on when touched, and turns off automatically; ideal for those wishing to indulge their pup after dark; replaceable batteries