ChildCenter #5. This line is the best bargain in the playground marketplace today! It is a very safe, durable structure (with a life expectancy of 12 to 16 years) and has a lot of play value. Ideal for child cares on a limited budget. It installs easily within 1½ to 3 hours and does not require a contractor. 10 Play Events for 21-25 kids ages 2 to 7, 31'x28' use zone, actual size 17'x19'. Made with high impact UV stable roto molded polyethylene. NOTE: Please call 1-800-979-8898 for actual shipping on this item (cart calculates incorrectly). If you place your order online, we will contact you with the correct amount.