【Product Description】 Design three-dimensional routes with computational thinking. Cultivate logical thinking skills while enjoying three types of play. 【Target Age】5 years old - 99 years old All parts are included, but there are an excessive number of balls (marbles) ☺︎. They will be handed over as is. Used only 2-3 times. There are no noticeable stains. We ask that you understand this is a used item played with by a child and only purchase if you are not concerned. The box has scuffs and tape marks. ※※To those considering purchase Before purchasing, please be sure to read our profile. Please refrain from purchasing if you are looking for perfection or are sensitive.