Genuine leather glasses case, approximately 170x80mm, 2mm thick, with a simple and stylish design. Description: - Material: Genuine leather (nume leather) - Size: Approximately 170x80mm - Thickness: 2mm - Shipping: Free Thank you for viewing. From cutting to sewing, this product is carefully handcrafted. We have lavishly crafted it from a single piece of leather so that you can fully enjoy the natural characteristics of the leather. Please pick it up and feel the deepening flavor as you use it. * Due to the nature of leather products, the color and texture may change with use. * Natural leather is used. There may be stains, scratches, blood vessels, and wrinkles. * Sizes are measured with a scale and may have slight variations. * The actual product may look slightly different in color depending on your monitor environment. ⚠️ All products are handmade. Due to being handmade, there may be minor scratches or imperfections in the thread processing. There may be scratches and wrinkles unique to leather. As it is a natural material, there may be natural leather marks, processing stains, and [odor]. There may be scratches and wrinkles unique to leather. ⚠️ Genuine leather, especially good leather, requires attention to mold (regular maintenance is necessary). ⚠️ On Mercari listings, There seem to be many fake leathers (PU leather, synthetic leather, faux leather, soft leather) mixed in. Please be careful when purchasing. [The price is significantly different from genuine leather.] All of my products are [genuine leather]. (Genuine leather is not affected by a regular lighter flame) We appreciate your understanding before purchasing. ◾️Tanning (Nume Leather) This is a plant-based tanning method using "tannin," a component found in the astringency of red wine and tea, and is said to be the oldest method. Also, leather that has undergone tannin tanning is called "nume leather." It can take several months to tan, requiring time, effort, and space, but it allows the tannin components to be slowly absorbed into the leather without burdening it. As a result, it is durable and tear-resistant, and its softness increases with age, and its texture changes. The more you use it, the more you can enjoy the aging process, and you can enjoy the unique expression of the leather.