Please read my profile before purchasing. Wallet bag that can also hold a smartphone Size: Height: approximately 13 cm Width: approximately 20 cm Please refrain from purchasing if you are concerned about minor details. There are two instances of negative feedback: One is that the seller did not respond for several days, and after an inquiry to the administration, a negative rating was given after the transaction was completed. The other is that I overlooked the fact that some of the contents of the book were missing due to my mistake. I will strive to prevent such incidents from happening again in the future.