... .Oeko-Tex Standard 100 5.different sizes for your choice Eyelet Button1.Material:brass&stainless steel%others2.Size:4mm,4.5mm ... ,8mm,10mm,12mm,14mm,15mm,18mm,20mm,23mm(refer to hole diameter)3.Color:we have our own electroplating factory,so ... professonal in manufacturing metal buttons,such as snap button,jeans button,rivet,trousers hook,eyelet,D ring,square buckle and labels.Welcome all ...