... lead free 3.Oeko-Tex Standard 100 class 484#, 486# spring snap button nickel free & lead free:Intertek test report material ... : brass color: nickel nickel free486# spring snap buttonthere are different items:Prong Snap buttons, Spring Snap buttons, Sew-on snap buttons ... be lead free nickel /free which is environment-friendly 484#spring snap buttoncap size socket size 14mm 14mm 15mm 14mm 17mm14mm ...