Made of premium brass with high-level plating craft and snaps tightly, higher glossiness cap which is durable, sturdy and not easy scratched and rust for continuous use. Cap diameter is about 0.59 inch, each set is composed of (cap + socket) with (stud + post). This snap kit can fulfil your various leather decorative demands or clothing repair supplies, such as jackets, jeans, belts, hats, pet clothes, bags and diy craft decoration.