The Learning Resources Gears! Gears! Gears! STEM Building Set is a fantastic toy for young children aged 3 and up. With 96 pieces made of durable plastic, this gear building set encourages creativity and problem-solving skills. The set includes various gear pieces in a polybag packaging, perfect for imaginative play and hands-on learning. The STEM theme makes it a great educational toy for both boys and girls, getting them interested in engineering and building from a young age. Overall, this set is a fantastic choice for little builders who love to tinker and create.