This is an educational puzzle from the Kumon method. I bought it for my child, but they no longer play with it, so I'm selling it. All the pieces are present, but there are some minor markings on the problem book (like check marks for correct answers). This is a used item that my child played with, so please understand and purchase with no claims and no returns. - Brand: KUMON - Product Name: Logical Route Puzzle - Target Age: 4 years old and up - Puzzle Type: Educational Puzzle Thank you for looking.