Genuine leather yellow book cover, compatible with B7, A6, and A7 notebooks. - Material: Genuine leather (nume) - Color: Yellow Gradation - Pockets: Card pocket available Thank you for viewing. - Size: Overall: Approximately 260mm, Width: Approximately 170mm ◾️Compatible with ⚫️Paperback books ⚫️Medical record books ⚫️B7 notebooks ⚫️A6 notebooks ⚫️A7 notebooks From cutting to sewing, all handmade with care. 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 differ slightly in color depending on the monitor environment. ⚠️ All products are handmade. Due to being handmade, there may be minor scratches during production and imperfections in thread processing. There may be scratches and wrinkles unique to leather. Due to the natural materials, there may be natural leather marks, processing stains, and [odor]. There may be scratches and wrinkles unique to leather. ⚠️ Genuine leather - 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 even if you apply fire with a regular lighter) 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 less likely to tear, and its softness increases with age, and its texture changes. You can enjoy aging (changes over time) the more you use it, and you can enjoy a unique leather expression.