This laser pet toy is specifically designed to capture your pets attention without harm and is completely safe for all pets. A 3-in-1 combo light, the pen uses standard refills which are available for purchase most anywhere that pens are sold. It also has a red laser beam that your dog, cat or other animal will love to chase. There is also a handy super bright led flashlight attached as well. AG3 batteries are included & is ready to go right out of the box.