metal eyelet and washer 1.material:brass,aluminum 2.finish:zinc,chrome,nickel 3.high quality,free sample 4.ISO9001:20 metal nickel ... white zinc,yellow zinc,blue zinc,color zinc,black zinc and black oxide,certificate:ISO2000:2008&GOHSAdvantage:high quality,reasonable ... price,better after-service,and delivery in time.MOQ:100,000terms of payment: L/ ...