Complete 90- : Leather rivet kit includes 6 sizes (M5*4mm, M5*5mm, M5*6mm, M5*8mm, M5*10mm, M5*12mm), 15 sets of each size. And with 3 different lengths of screw (M4*3mm, M4*4mm, M4*5mm). You can combine them freely. It is suggested that the column sizes of M5*10 and M5*12 should be matched with M4*5 screws, so as to be secure. Various lengths are to meet your different needs

Design: Leather rivets and durable, easy to bind, excellent finish, screw chamfering, low profile slot, professional appearance, easy to disassemble and install

High-Quality Material: These Chicago screws are made of high-quality carbon steel, nickel , and a and dense oxide film the surface, don't come loose which is durable and anti-rust

Widely Applications: These screw rivets for leather are especially suitable for kinds of leather crafts, such as belts, handbags, leather shoes, binding documents, books, photo albums, DIY crafts and so . You can mix it up and use your imagination

Storage Box: the chicago screws for leather packed in a delicate and transparent box. The book screws are arranged according to size, you can easily store and find the size you need

Easy Installation and Removal: The bronze Chicago screws feature a user-friendly design that allows for quick assembly and disassembly, making them convenient for projects that require frequent adjustments or modifications to your leather crafts