Learning Resources Gears Gears Gears! Space Explorers Building Set. Our Gears! Gears! Gears! range is ready for blast off with this space-themed construction set! This 77-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 space-themed gears, cranks, connectors, interconnecting base plates and a multilingual activity guide. Suitable for ages 4+.