A Toddler Activity To Enhance Fine Motor Skills! The best part is that your little ones won't even notice that they are learning as they play . Get your little engineers building! The set contains 100 sturdy pieces that snap together, challenging your child's creativity. Children discover something new every time they play. The gears in this colorful set offer hundreds of 3-D construction possibilities. Encourage Problem Solving and Perserverance provides many opportunities for young children to experiment with simple mechanics and science.