The Fuddle-Dee-Duddle Play System is designed to provide great appeal for children. The Fuddle-Dee-Duddle Play System is both ASTM and CPSC compliant, which means it meets national standards for safety. Children love to play on such slides and the set up is easy to install for most skilled contractors. Professional installers can offer a higher level of service, but cost more than doing it yourself. The system is made up of heavy-duty steel and plastics, which enhances its durability. The Fuddle-Dee-Duddle Play System is built with 3.5-inches diameter upright posts. Fuddle-Dee-Duddle includes a double and single slide accessible by means of a transfer station or lily pad climber.