Children love to sit and spin on this classic toy! Constructed of durable hard plastic, this toy features a freely spinning disk that utilizes ball bearings. And it’s strong enough to support multiple children ages 3+. Stimulate their vestibular system and improve their balance, visual tracking and muscle tone while having fun!Children will learn about their coordination and strength as they control their own movement with the center steering wheel. Spinning also stimulates their vestibular system which can assist with balance and visual tracking as they learn about their body in space. Kids will explore gravity as it relates to the spinning motion of the disk. Whizzy Dizzy Sit ‘n Spinis constructed of durable PE plastic, which is load tested to safely support multiple kids. The base includes 10 rubber feet to help keep the Whizzy Dizzy stationary when in use. The ball bearings in between the two discs enable a smooth and continuous spin. For ages 3+ Assembly instructions included. Indoor use only Dimensions:12H and 21.7 diameter.