Did your pet's favorite Babble Ball run out of batteries? No need to stress! These Replacement Batteries are made just for Pet Qwerks® Babble Balls® and ship in a pack of six. Each Babble Ball requires three batteries, so you'll have three leftover for next time! Compatible with all Pet Qwerks Babble Balls including Animal Sounds Babble Balls, Talking Babble Balls, Cat Babble Balls, and Blinky Babble Balls. To replace the batteries, simply use a small, Phillips screwdriver to open the battery compartment. If you have difficulty opening the battery compartment use a pair needle-nosed pliers.