PETRICH's Spinning Butterfly Cat Toy is a fantastic product of great design. Cats love this, especially younger cats or kittens! It's made of high quality materials and operates off of a AAA battery (Not Included). It is roughly 8*5.5 CM so it doesn't take up a lot of space or need a large area to operate.  Keep your cat healthy by entertaining it with this fantastic toy, hours of exercise provided for free ;).