A4 size underlay with 90 different map symbols. It is also very helpful for children to learn map symbols. Even adults can feel the nostalgia of old school and may have new discoveries. There are 90 different map symbols on the surface. The reverse side has the origin of the map symbol. Understand why the map symbols have become this shape and develop knowledge and interest in map symbols. Simple and easy to use design that allows you to learn deep map symbols naturally. A4 size makes it easy to use and practical for adults and children. Size: A4 x W: 11.6 x H: 8.3 inches (297 x 210 mm); Material: PET (Polyethylene Terephthalate); Paper: Made in Japan.