This is the educational toy NEW Tangram from Kumon Publishing. It has been used only a few times. The front of the boards are all in beautiful condition. There is a small stain on the back of the sea otter board. Please refer to photo 11. The backs of the other boards are in beautiful condition. There is a faint stain on the puzzle pieces that cannot be wiped off. Please refer to photo 17. There is a dent in the box. Please refer to photo 18. This puzzle uses 7 wooden pieces to create shapes based on example problems. It starts with 2 pieces and gradually increases to 7, so children can play from a young age. It comes with 20 guide boards, allowing children to gradually step up and develop a sense of shapes. With the guide boards, both children and adults can enjoy and learn, making it a fun brain training activity. Target age: 3 years old and up to adults When shipping, it will be wrapped in cushioning material (bubble wrap) and placed in a paper bag. We appreciate your understanding of this being a used item. Thank you for looking.