Round hoops 42mm Blank Hoops for Earrings or Pendant Offset Circle for Enameling Stamping Texturing, Jewelry Components - 4 PiecesCopper Blank Hoops Offset Circle for Earrings or Pendant Cutout for Enameling Stamping Soldering Jewelry Shape Blank, Type of Metal Copper, Grade of Metal First Grade, Gauge of Metal 20 Gauge, Measurement 42mm with 20mm offset circle and are 3mm from the edge (for the cutout patr), Quantity 4, Also pictured in some of our listings are some of our copper figures Enameled with Vitreous Glass Materials: copper, stamping, cutout, blank, jewelry, blanks,