High Quality: Adopts quality copper material, study and durable.Fine machining with good electroplating processing, anti-rust and colorfast. Easy To Use: Threaded post let you easily applied with standard screwdriver.Easy to bind and remove, can be used repeatedly,good tightness. Package Include: It comes with 20 sets Metal Studs Rivet, each set contains: 1 rivet +1 screw; Three different rivets sizes: 5mm,6.5mm,8mm; prepared for you to choose.meeting your different use needs. Widely Application: Ideal for decorating your bags, belts, leather bracelets, shoes, boots, handbags, hats and more. Suitable for all kind of art and leather crafts and DIY clothes making. Satisfaction Guaranteed: We're so confident that you'll be delighted with our Spike Metal Studs Rivet,if you have any questions,feel free to contact us,we will give you a satisfactory answer.