WSWS - Lifelike Breathing Sleeping Pet Toy (Dog, Shephred) Works with D size battery (not include), on/off switch located at the bottom of the pet When you turn it on, the dog breathes, and belly moves up and down like real sleeping pet Inner:polyethylene hard shell; Outer: Soft synthetic hair Dimension: ~ 26 cm x 10 cm Licensed trademarks of WSWS LLC