... jackets, belts, shirts and bags. Push the stud into the material, and fold the prongs over on the back-side. Washable and durable.Rivet ... Brass),Antique Copper,Gun Metal,Gold,Silver(Nickel).Printing Color:Red,Blue,Yellow,Green,Orange,White,Black,Purple,Mixed Color etc ... items of Prong studs,Rhinestone rivets,Screwed Spikes How to use Any question please feel free to send us inquiry,we will reply you ...