Yubi de Nazotte Hajimete no Suuji (First Numbers by Tracing with Your Finger) 2, 3, 4 Year Olds Bunri Editorial Department Price: ¥660 Approximately 30 out of 80 units have been written in. Some pages can be erased with an eraser and used again. #BunriEditorialDepartment #Book #Nature/Mathematics KUMON Sukusuku Note: Easy Numbers & Easy Letters 3-5 Year Old Set Approximately 1/4 of the set has been written in. Some pages can be erased with an eraser and used again! Selling both books as a set at a reduced price. For those who want to try them out. Please refrain from purchasing if you are concerned about the exact number of pages used. Therefore, the price includes shipping and is discounted.