This item uses a zipper approximately 20cm long. It is 13cm tall, has a gusset, and is lined. It's the perfect size for storing small items, bankbooks, etc. The patterns on the front and back are different. This is a handmade item. While I take care in making each one, there may be some imperfections such as warping or misalignment. Please refrain from purchasing if you are looking for a perfect item.