1Made of high quality aluminum material, the buttons are wear resistant, rustproof and durable in use. 2100 sets includes 100 bread shape cover buttons and 100 aluminum back buttons. 3The buttons are so versatile that it can be used to make hair clips, pushpins, cushion buttons, scrapbooks, etc. 4Ideal for clothing home textile manufacturing, DIY jewelry, crafts, toys and other decorative materials. 5There are different specification of buttons for your choice.