Learning Resources Gears Gears Gears! Robot Factory Building Set. Our Gears! Gears! Gears! range has taken a modern twist with this robot-themed construction set! This 79-piece set offers endless colourful construction fun and is perfect for supporting STEM Learning. Childrens’ imaginations and critical thinking skills will help them create endless designs while beginning to understand cause and effect concepts. Set includes a box overflowing with robot-themed gears, cranks, connectors, interconnecting base plates and a multilingual activity guide. Suitable for ages 4+.