This is the LEGO Education science and physics learning set "BricQ Motion Essential (45401)". Suitable for ages 6 and up, this is a high-quality educational LEGO set that allows children to experience "force," "motion," and "interaction" through play. Unlike regular LEGO sets, this one features springs, weights, sails, and other elements, enabling science experiment-like play. 【Condition】 The box has been opened, but the parts are unopened. They are in the same condition as when opened, so they are considered to be in near-new condition. Please check the photos carefully for the condition. ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝ 【Other】 The item will be wrapped in cushioning material and shipped in a cardboard box. Please refrain from purchasing if you are concerned about minor scratches or stains, as this item has been handled by a person once. Please ask if you have any questions. Thank you very much. (^^)