Imitates an angry mouse to get your cat's attention, an unpredictable movement that replicates the movement of Hidden Prey, your kitty will go crazy catching it. It is a great exercise toy for your indoor cats of all the ages. 4 different speeds - slow, medium, fast and random 4 different changeable speeds to entertain your cat. In fact, his movements are so real that you and your cat will swear there's a live mouse at home Works great on carpets and smooth floors. A great gift for your cat at any age. Batteries required - 3 C batteries required (not included), English manual included. Easy to assemble and clean, durable, bring lots of fun to your cats Color:Yellow Product description Very fun secret mouse, moving randomly under its resistant nylon case. Stimulate the prey instinct of the cat. Made of durable plastic, allows for easy speed adjustment and provides hours of interactive fun Specification: Material: nylon+plastic Powered: 3x 1.5V C batteries (not included). Weight: approx. 440g