HOUSWEETY 20PCs Silver Plated Round Cabochon Setting Connectors 3.1x3.1cm(Fit 20mm) Material: Zinc metal alloy(Cadmium Free); Main Colour: Silver Plated; Approx:3.1cm x 3.1cm(1 2/8"x1 2/8");Hole size: 1mmx2.5mm( 1/8") Thickness: 2mm( 1/8"); Weight: 80g; Perfect findings for making jewelry.Every findings has its unique design and style and theme, hence the necklaces and bracelets made with them are unique and represent your own fashion.