This ThinkFun MAKER STUDIO Gears Set is an exciting educational toy for children and adults alike. The set was released in 2014 and has never been used. It includes recycled items that can be used to create moving objects. The set is perfect for anyone aged 7 and up who is interested in science and nature. It comes with all the necessary pieces, with no additional parts needed. The set is made in China and is not modified. The MAKER STUDIO Gears Set is great for children who are interested in engineering and building. It is an interactive and fun way to learn about gears and how they work. This toy is also perfect for adults who are interested in science and engineering. It is an excellent way to challenge yourself and build something that moves. This set is sure to provide hours of entertainment and education for anyone who uses it.