Features: Made of high quality aluminum material, the buttons are wear resistant, rustproof and durable in use. 100 sets includes 100 bread shape cover buttons and 100 aluminum back buttons. The buttons are so versatile that it can be used to make hair clips, pushpins, cushion buttons, scrapbooks, etc. Ideal for clothing home textile manufacturing, DIY jewelry, crafts, toys and other decorative materials. There are different specification of buttons for your choice. Specification: Material: Aluminum Optional Model | Button Diameter (mm): 16L|10, 18L|11.5, 20L|13, 22L|14, 24L|15, 28L|18, 30L|19, 32L|20.5, 36L|23, 40L|25.4, 44L|28, 48L|30, 50L|32, 60L|38, 70L|44.5Package List: 100 Sets Covered Buttons