OEKO garment brass snap button fastener brass OEKO-TEX standard 100 OEM service logo addition,color as need --OEKO garment brass snap button/fastenerring-spring snap,ring snap,kinds of nap tops.--brass--Nickle free, Lead free,Azo Free,Rust free.--OEKO-TEX standard 100 --OEM service--customized size and color--logo addition