Specification Brand : AYNEFY BulletPoint1 : 【High Quality Material】These metal pyramid studs is made of premium brass material,not easy to fade, and not easy to get and wear.The leather patch is suitable for fabric or leather. BulletPoint2 : 【Wide Usage】These metal leather rivets studs are for belts, leather jackets and wristbands, dog collars,shirts, backpacks, shoes, hat, cheongsams, work clothes, bike ornaments and etc. BulletPoint3 : 【What You Get】You will receive 400 pieces gold pyramid rivets studs, enough quantity metal studs can nicely satisfy your daily leathercraft usages and replacements.The rivet have various size.Optional Size: 4mm, 5mm, 6mm,7mm.Any size you need all have. BulletPoint4 : 【Easy to Install】All you need to do is put in the rivets, tap, and then the installation is complete.Simply nail these studs into the place where you want it to be and make it a stylish decoration showing off you unique punk taste. BulletPoint5 : 【Note】 If the leather or other fabric you want to DIY are very thick and the claws on the punk studs rivets cannot penetrate directly, you can use awl to make holes first and then install the rivets to avoid damaging you clothes or shoes. Color : Silver ItemName : 400 Sets DIY Leathercraft Spike Rivets, 4MM-7MM Leather Craft Rivet Four Jaw Rivets Spikes Studs Metal Pyramid Studs Handicraft DIY Punk Spikes for Clothing Shoes Leather Craft (5mm) ItemPackageDimensions_Height : 5.8 centimeters ItemPackageDimensions_Length : 1.9 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : leathercraft-rivets Manufacturer : AYNEFY ModelName : AYNEFY2gmipzu9b0-16 ModelNumber : AYNEFY2gmipzu9b0-16 PartNumber : AYNEFY2gmipzu9b0-16 ProductDescription : Spec: Item Type: DIY Leathercraft Rivets Optional Color: Gold, Silver, Gun Color, Bronze Material: Brass Optional Size: 4MM, 5MM, 6MM, 7MM Quantity: 400 sets / pack