SmartMax My First Tractor Set is designed for kids ages 18 months - 5 years, offering a safe and fun introduction to magnetic discovery. Easily build the Tractor set and play with the horses and the farmer. The oversize parts of the tractor and the horses simply click on the bars, making them ideal for little hands. SmartMax My First Tractor set includes 22 pieces and is compatible with all other SmartMax sets.