This is a handmade item that I made myself using a home sewing machine. It uses a 20cm zipper, and the outer fabric is Liberty lawn fabric (not Tana Lawn) with quilt batting attached, giving it a soft and light finish. The animals in the forest create a wonderful piece full of dynamism. Photo 6 shows the contents I actually put in a pen case of the same size (not the product itself). Please use it as a reference. I think a ruler up to 18cm would fit (the ruler in the photo fit). I think it can be used for various purposes other than a pen case. Size (outer dimensions) Width: Approximately 22cm Height: Approximately 7cm Depth: Approximately 5cm Please allow for some margin of error. I make each item with care, but there may be some imperfections. I would appreciate your understanding and acceptance of handmade items, and I hope you will purchase with that in mind. Thank you very much. ◆When making a purchase◆ Please also take a look at my profile. ※Liberty Eight