1.Material: H65 Brass 2.Nickle free and lead free 3.Oeko-Tex Standard 100 class GH----Professional high quality (prong,spring,sewing) snap buttons top manufacturer.1). We can design for your products.2). Materials: brass 3). Applications: Bags, Wallet, Boxes, shoes,children's garment, men's or women's shirts, coats, jackets, and pants 4). We have pulling test report, lead free test report, nickel ...