HOUSWEETY 1 Stainless Steel Floating Living Memory Locket Pendant Silver Tone 3.6cmx3cm Main Material:Stainless steel;Main Color:dull silver tone(not silver plated) Approx:3.6cm x 3cm;hole size:4.2mm;Thickness:6.6mm( 2/8"); Environmental protection,beautiful appearance,light weight,convenient installation.Beware of swallowing by children. perfect DIY jewelry making charms;can be opened and add little crafts as you like Perfect findings for a variety of jewelry making. Every findings has its unique design and style and theme, hence the jewelry made with them are unique and represent your own fashion.