This is a denim pen case. It has a belt on the back, and the length can be adjusted with Velcro. It can be used in a wide range of situations, such as drawing outdoors or bundling textbooks at school. * It can hold several books, such as notebooks and sketchbooks. For college use, or for carrying 2-3 pens, erasers, etc. * Pen case dimensions: 17 cm (length) x 6 cm * This is a remake of vintage jeans. (Guess)