30piece Silver Adjustable Filigree Blank Disc Setting Beading Ring Base 18mm Supplies for Jewelry Making Findings Jz68 (SILVER PLATED) Adjustable Filigree Blank Disc Setting Beading Ring Base 18mm Supplies for Jewelry Making Material: Copper Size: ring inner diameter 18mm diameter. Due to the handmade sewing,size may vary one to another approx 0.3~0.5cm Color: Antique Bronze, Silver Plated, Black Gun plated