This little Kaytee Critter Cruiser Small Pet Interactive Activity Toy will bring your hamster or gerbil hours of endless high speed enjoyment. In addition to being a hot car, it also has a adjustable wheel which will enable the car to work in three different modes. In the top position, the car stays in park but the wheel will move enabling a stationary workout. When the wheel is moved to the middle position, the car will gently glide on any flat surface. When adjusted to the lower position, the car will roll along the custom track which is included with the car. While running around in it, it will think it is driving while getting a workout. Made of a durable plastic, each Kaytee Critter Cruiser will endure stimulating races and workout regiments. The color of the car will vary.