HOUSWEETY 100PCs Silver Tone Stainless Steel Split Rings 7mm(1/4") Approx:7mm x 0.7mm;Hole size: 5.2mm(1/4") Thickness: 0.7mm; Main Color:dull silver tone(not silver plated); Main Material:Stainless steel(Cadmium Free); High quality stainless steel,no fading, nondeformable,allergy free; Environmental protection,beautiful appearance,light weight,convenient installation.Beware of swallowing by children. 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.