QUALITY AND DURABLE - Made of good quality carbon steel, hard, sturdy and durable, with nickel plated surface, easy to catch rust and erosion, providing long service life. EASY TO USE - This screw set is easy to install, use a drill to drill a 5mm diameter hole, then you can install the 2 pieces on both sides, they can connect different items. REUSABLE - The threaded post allows you to open and reattach the part using a standard screwdriver. WIDE APPLICATIONS - The screw post is suitable for holding and the decoration of documents, books, scrapbooks, photo albums, etc., good supplies, especially for leather crafts. 30 SETS - The amount of the screw is composed of screws and the top, they are compatible. Total 60 pieces Product Description About Increway: Major Categories: Tools & Home Improvement, Home & Kitchen, Some Mechanical Parts etc. Our goal: one-stop shopping for all kinds of repairs, replacements, and decorations you need in your daily life and work. For the home. Can be used