With this 90 Sets Matte Black Chicago Screws Leather Assorted Kit, you'll have everything you need to add strength, durability, and professional-looking finishes to any of your leather crafts. Each kit includes 7 different sizes of Chicago screws for leather (M5 X 4, 5, 6,7) with 15 sets of each size and 10 sets M5 X 8, 10, 12. Additionally, the kit includes three different lengths of screw (M4 X 3, 4), which you can use to combine the screws freely.These leather rivets are strong and durable, making them easy to bind and disassemble. They feature an excellent finish, professional appearance, good screw head chamfering, and a low profile slot, making them the perfect choice for anyone looking to create high-quality leather crafts. Their advanced nickel plating and their stable oxide film on the surface will keep them durable and anti-rust.These screw rivets are incredibly versatile and are especially suitable for all kinds of leather crafts, such as belts, handbags, leather shoes, binding documents, books, photo albums, and DIY crafts. When you add them to your projects, you'll be able to mix and match to create any number of designs and styles.All of the leather screw rivets are packed in a delicate and transparent box, with the book screws arranged according to size. This makes it easy for you to store and find the size you need. Don't settle for second-rate leather screws when you can have the best with this 90 Sets Chicago Screws Leather Assorted Kit. Try them out now and experience the difference for yourself!