This 56-in-1 kids’ power machinery building blocks set is a toy set that is designed to greatly stimulate your child’s mind and develop their shape recognition, spatial awareness, concentration, and problem-solving skills among many positive puzzle-solving benefits. This set is perfect for kids ages 6+ and is made from non-toxic ABS plastic material to ensure it’s safe and enjoyable to play with as they build different kinds of engineering gems. Learn all about the lever principle, power transmission, gear structure, and more with this ultimate all-inclusive machinery set!