1.Material: H65 Brass 2.Nickle free and lead free 3.Oeko-Tex Standard 100 class baby ring prong snap button 1 pp coated, many colors for your choose 2 usded for kid's, chid garment/ coats 3 lovely baby ring prong snap fastenerthere are different items:Prong Snap buttons, Spring Snap buttons, Sew-on snap buttons,2 style like cap snap button, cap hole snap button, Pearl snap button, pearl hole snap ...