If your dog loves to play fetch, Nite Izes GlowStreak Ball Spotlit Combo lets you and your best buddy keep playing ball long after sundown. Sure its full of bounce, but the Streak Ball has a protected inner core with a motion-activated LED light inside. This advanced module with bright red or color-changing Disc-O LEDs inside. Molded, shockproof, waterproof, polycarbonate core keeps the removable/screw-in light and battery module safe and secure. Its the same size as a tennis ball with unique grooves, so it has a bite-friendly exterior thats the right size for most dogs. Long-lasting replaceable batteries last for up to 35 hours of playtime. Ball comes with a matching Spotlit LED Collar light. This water-resistant light easily attaches to your dogs collar with its stainless steel carabiner clip. Sturdy light can be set to red-flashing or color-changing mode. Replaceable batteries. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Toys.