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 - Threaded post allows you to open and reattach the piece with a standard screwdriver. WIDE APPLICATIONS - Screw post is suitable for holding and decorating documents , books, scrapbooks, photo albums, etc., good supplies, especially for leather crafts. 30 SETS - The screw post is made of screws and the top, they are compatible . Total 60 pieces Product About Increway: Top Categories: Tools and home improvement, home and kitchen, some professional mechanical parts, etc. Our goal: one-stop shopping for all kinds of repairs, replacements, and decorations you need in your life and your work. For the home. Can be used for decoration, furniture repair and your DIY projects, they are essential for the family. Office. Office furniture, appliances, etc., you also need these small parts to prepare emergency parts. Vehicle Car repair, spare parts, these products will also be a good helper. Machine Reliable quality product, can be used for mechanical maintenance and industrial applications.