The Sit-N-Spin unit is perfect for children between the ages of 2 and 12 years old. It is built to hold one child at a time. It has a fall height of 1 foot 9 inches, and its safety zone is 14 feet 1 inch by 14 feet 1 inch. You can order this unit with a yellow base and a blue top to add some playful color to your playground. All of our products are IPEMA tested to meet ASTM and CPSC standard for public play equipment, so you can be assured that the Sit-N-Spin unit will be long lasting and safe for children to play on.