indoor cat interactive swimming fish toy- best water cat toy for indoor cats, play fishing, good exercise, drink more water, led light, battery included (swimming bowl is not included) (4 pcs) blackhole litter mat does your cat/dog hate water? not drinking enough water and hate bath time? robot fish can be a great toy to introduce water activities to your cat/dog and encourages him/her t to feel more comfortable around the water. it is made with durable material, safe for pets, and very easy to use. with a convenient auto turn on/off feature, it is a perfect gift for your cat/dog and any other cat/dog owners. *this is not a toy for children. *this is a toy for cats and dogs only. *batteries are included. it will last approximately 30 minutes (to maximize battery life, avoid using it continuously). * automatically turns on/off in response to water with a sensor. * in case the toy does not stop automatically when you remove it from the water, please use the included tool to remove the battery. * make sure the toy is completely dry when replacing the battery. *colors vary. components: 4 fish, 8 batteries (lr44), 1 battery replacement tool