What you have received: This package has a total of 24 sets of sewn snap fasteners, available in two classic colors, black and silver, with 12 sets each. The quantity is sufficient for long-term use and replacement, and can also be used as a practical gift for family, friends, or neighbors Size information: The diameter of each metal buckle is approximately 0.47 inches/12 millimeters, which is the ideal size for you to use on items such as bags, clothes, hats, etc. It is invisible and can form a natural closure. Please check the size before purchasing Sturdy material: These black silver pressure nails are made of high-quality metal and are not easy to rust or deform. They are durable, have a smooth surface, and are easy to match with fabrics of different colors, making them reusable Easy to use: Each set of buttons consists of two parts, the front and rear. Simply sew these buttons to the appropriate position you want, and the two parts can be fastened together as fasteners for different sewing projects without the need for other complex tools Multiple uses: Sewing buttons can be widely used in different DIY crafts and fabrics, such as woven bags, pockets, hats, clothing, PU leather, pants, shoes, backpacks, coats, etc., and are multifunctional fasteners for fastening and repairing