I love STEM toys and I can not begin to stress that enough. They incorporate play and learning and help to develop young minds.They help kids connect the parts with the world around them. Tinkering Labs has great STEM toys that teach children about how motors work. Their catalyst kit for kids is designed to make children learn to work together, use their gross motor skills and creativity. Do you want to build a robot? You can with this set. This set contains real wood, real motors and real hardware. The pieces are very good quality and designed to last so that they can be used over and over again in different ways. Everything your child needs to complete their project is in this box. This product is recommended for children 8 and up and has an MSRP of $55. Check out my video review explaining the contents of the box Look at all of these fun inventions that were created using the Tinkering Labs Electric Motors Catalyst: ...