6 Trendy Color: get light gold, gunmetal, platinum, silver, antique bronze, antique golden in one purchase, classic and stylish, suitibable for both male and female, provide you more choice to match with various styles' and colors' leathercraft. Dimensions: are about 12mm/0.47" in diameteer, 22mm/0.86" long. 5 sets/color, 30 sets in total. Each set contains one stud screw and one ball head button with D ring. All packed into one storage box as each color assorted in one plastic bag. Durable Construction: the stud screws are made of quality alloy, with treatment and fine workmanship, durable to withstand daily use, not easy to wear or rust ; have nice finish due to advanced plating process, hard to fade. Easy Installation: just insert one into the pre-punched hole, tighten the screws on the base, then it can be fixed firmly without falling off; 360 degree rotatable ring, easy to be used for connecting purse chain, purse straps, bag dangle and so on. Wide Applicance: could connect 2 pieces of leather together with good effect, suitable for purse chain decors, backpack hardware, suitcase, tote, travel bag, leather belts, wallet, change purse, keychain, shoes, hats and leather crafts DIY projects.