I have worked on all the pages, but they can be used if you erase them with an eraser. *There is only one page that has been worked on with a pen. There are also unused parts, such as stickers and practice boards. It is a used item, but I would be happy if someone who doesn't mind could use it. An activity book that develops motor skills and judgment through mazes and coloring. - Title: Maze Play Vehicles - Publisher: KUMON - Stickers: With "Well Done!" stickers - Contents: Activities such as mazes and coloring - Target age: 4-5 years old Thank you for looking.