... 1quality:close fastening & crimping smooth 2material:brass 3size:6mm,8.5mm,12mm,15mm,19mm, brass snap fastener with 6-Holes --raw materials ... : quality brass--various styles,--size:6mm,8.5mm ... ,10mm,12mm,15mm,17mm,19mm,21mm,--color:Antique Brass,Silver,Black Nickel,white(Nickel-free)--close fastening ,--high quality,crimping ...