By taking away the large bottom platform, the Climbing Whirl Spinner presents an exciting challenge for all ages. At the widest point, is a thick ring to sit upon. Kids will need to focus, climb, and think to be able to reach the middle. The Spinner Series develops balance, strength, imagination, and social development. As a single attraction or the highlight of every playground, this freestanding play equipment provides fun for a range of different age groups. Constructed with steel and polyester, this spinner is sure to last.