These studs from StudsAndSpikes are made of a gauge sheet (0.018 to 0.025 inch) metal for long term application. The plating and color (Nickel, roll coat Red/Black) is made to be durable. Great way to make your DIY projects such as your old denim jacket or your leather belt. Why not make your own punk designed jacket? It can be attached to material as thick as 1.5mm (1/16 inch).