The concept comes from the experience of exchanging business cards, how to make it more convenient to take out business cards. Observe that when we open a book, the thumb will get used to the place where it was put, so we made a hollow design at this position, and we can help launch the business card from the left and right sides. A total of 20-30 business cards can be placed on the left and right (depending on the thickness of the business card) Material: plant yak leather, rag leather (lining), 100% natural hand-stitched twine Size: 11cmX7cm Origin: BeingLife Taiwan Design and Production Intimate reminder: If there is a need for stamp printing service, it is a custom order, you need to transfer money or pay by card, the receiving method is registered parcel or super pure pick up. product description: Specially designed left and right openings for easy launch of business cards or cards: https://c2.staticflickr.com/8/7810/46475776154_dfd51dbd8e_b.jpg Made of leather inside and outside, it can be used for long-term use without deformation. https://c2.staticflickr.com/8/7869/46475739334_eb781c95fe_b.jpg Care instructions: 1. If water drops on the leather, first take off the water droplets as soon as possible. If it has been inhaled into the leather, wet it with pure water wet tissue, facial tissue or white cotton cloth (do not wet it will drip), evenly rub the included drops. Allow the water to spread over the entire leather surface of the water, reduce the chance of leaving dark water stains, then place the leather parts in a ventilated place to dry or dry naturally, or blow dry with a cold air from an electric fan or a hair dryer, such as a hair dryer. Only hot air, please keep at least 30 cm away from the leather. 2. The temperature and grease of our hands are the most natural skin care products for leather products. After long-term use, it will gradually become a unique color change. Avoid direct sunlight. 3. If it is not used for a long time, first take off the dust with a clean cotton cloth, then cover it with a cotton cloth or old white cotton T, and store it in a ventilated place. If you have leather maintenance oil, you can wipe it regularly (about three months). Before cleaning the oil, wipe off the dust with a clean cotton cloth and make sure the leather is dry. 4. Avoid using maintenance/cleansers with alcohol. If you have any questions about the product or use, please feel free to contact us.