HOUSWEETY Stainless Steel Polished Magnetic Clasp With Locking Mechanism End Cap Clasp Fit 6mm Cord Length:30mm(1 1/8");Outside diameter:8mm(3/8");Inner diameter:6mm(2/8"); Main Color:Bright Silver Tone;Main Material:Stainless Steel; High quality stainless steel,no fading, nondeformable,allergy free,perfect for sensitive ears; 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.