Bluemoona 100 Sets - 3/8" 9.5mm Open Ring No Sew Snaps Fasteners Swing Stud Attaching Buttons Nickel size:3/8" (9.5mm) Color: Nickel Quantity:100 sets Each set includes 4 parts: 1 female socket, 1 male stud and 2 open prong rings (4 part) of these silver metal open ring prong no sew snaps that are perfect for making any of your pacifier holders, mitten clips, bib clips toy holder or sewing projects and so on