This is a KUMON spatial reasoning puzzle. (It seems that it is no longer sold by Kumon Publishing.) The outer box is quite damaged because a child used it. Also (see image) The wooden blocks inside are in a clean condition, so there is no problem using them. A guidebook is also included. We will sell it at a low price because the outer box is noticeably damaged. Please understand that this is a used item before purchasing. - Brand: KUMON Kumon Publishing - Product Name: Spatial Puzzle - Contents: Wooden blocks (red and wood color) - Target age: 4 years old and up - Puzzle type: 3D puzzle - Guidebook: Included #ElementarySchoolEntranceExam #EducationalToys