This is a pen case made from a single layer of laminated fabric. It has a rubber band on the back, so you can attach it to your notebook. The size is designed to fit a B6-sized notebook. It has a pocket where you can put pens or a ruler. It can hold about 3 pens. ⚫︎ Laminated fabric (no lining) ⚫︎ YKK 18cm ball-pull zipper (gold hardware) 【Size】 Height: Approximately 5cm Width: Approximately 18.5cm ★ The 6th image and onwards are size reference images. ★ This is a handmade item, so it is not as perfect as a commercially available product. ★ There may be slight variations in size. ★ Please note that laminated fabric cannot be ironed, so there may be wrinkles when turning it right side out. Thank you for your understanding. #drops_handmade_pen case Pen case, slim pen case, pencil case, with pocket, stationery holder, stationery case, writing instruments, cat, handwritten style, light blue, with rubber band, with elastic band, for notebook