This case is designed to carefully carry your stationery. Inspired by a string-bound envelope, its shape embodies the desire for you to carry your everyday tools with care. It features a crisp, square shape with sharp, straight lines. The exterior is made of beautifully uniformly colored red bonded leather fiber, while the interior uses a soft, brushed material. Each side is neat and beautiful, and it is crafted to maintain its shape while remaining flexible. It allows you to neatly and efficiently store stationery, which often has straight lines, making it a smart way to carry your stationery. The slender, vertically oriented SLIM size is modeled after a dozen pencil boxes, evoking a sense of nostalgia. For example, it is convenient for organizing tall, slender items such as pencils of different hardness used for drawing or a mechanical pencil and triangular scale for drafting. *Red is an Ito-ya exclusive color. [Size] Outer dimensions: W59 x H190 x D22 mm Inner dimensions: W49 x H180 x D15 mm [Materials/Ingredients] Bonded leather fiber, microfiber, leather - Bonded leather fiber is a recycled material that makes effective use of scraps generated during the manufacture of leather products.