These building blocks help develop dexterity and imagination through creative thinking. They are useful for spatial reasoning problems in elementary school entrance exams. Made of plastic blocks in the shapes of triangles, squares, and pentagons, they are perfect for creative play. Polydron (educational toy): All pieces have a logo. Everything shown in the photos is included. Blue triangles: 37 Red triangles: 37 Yellow triangles: 37 Green triangles: 39 Red squares: 11 Yellow squares: 7 Green pentagons: 4 Total: 172 【What is Polydron?】 Polydron is a system toy from the UK that allows you to create flat patterns and three-dimensional shapes by fitting together geometric shapes. Polydron, born in the UK Edward Harvey, a British engineer, invented a hinge mechanism that allows children to connect shapes at the edges to easily understand the development of figures. He received the Design Council Award from the Duke of Edinburgh. No box included. Please understand. I will disinfect with alcohol before shipping. I have stored it at home. Please refrain from purchasing if you are looking for perfection or are very sensitive. #ElementarySchoolEntranceExam #MiddleSchoolEntranceExam Thank you for viewing.