3.5" Blinky X-Tire Ball by Pet Qwerks / Babble Ball [pq-XTB3] Have a red flashing Blinky Ball inside that turns on when touched, and turns off automatically. These deluxe toys are ideal for those wishing to indulge their pup after dark. A perfect combination of toys with an upgraded electronics package for long-lasting fun. Now comes with replaceable batteries. Available in both 3½" and 5" size. Price: $8.99