Dome Sewing Buttons: These buttons are practical and important accessories for a variety of costumes. There is a 2mm hole in the middle of each glossy button, convenient for you to sew them on garments by threading the hole. Product Sizes: These black buttons have 5 sizes, about 12-27mm in diameter, 10-17mm thick, hole: 2mm. Please pay attention to the size and choose the appropriate buttons for your projects! Reliable Material: The half round button are made of alloy, the shape and color is beautiful, sturdy and not easy to get erosion and rust, with smooth surface, ideal for DIY projects. Easy to use: They are suitable for fine motor activities, crafts making, clothes sewing and DIY projects, scrapbook decoration, etc. When your DIY craft by buttons being sent as a gift, your friend will love and admire your amazing idea. Wide Application: The buttons are widely used for making crafts, sewing, decoration, are very practical. These vintage buttons are suitable for suits, jackets, blazers, uniforms, jeans. And it is also very suitable for DIY at home.