Check the listing for details. M5*10mm Plastic Binding Post, 24 Sets Plastic Chicago Screws Binding Screw Black. Condition: New. Listed at 9.44 USD. Chicago screws are widely used for DIY projects such as belts, handbags, shoes, clothes, leather bracelets, books, scrapbooks, photo albums, leather saddles, wallets, cookbooks, presentation folders, advertising brochures and so on. It's an useful accessory for your daily life.SpecificationMaterial: plasticHead Diameter of Screw & Post : 9.5mm / 0.37inchBinding Post Diameter: 5mm / 0.2inchBinding Post Length: 10mm / 0.39 INCHAdvantageChicago leather rivet screws are made of plastic, with a clear, smooth, sturdy and durable surface, it is lightweight and has good toughness, is not easily damaged, and has a long service life.Instruction This set of screw posts is easy to install, first drill a hole, then align and install 2 parts from 2 sides, press hard to bind different items.