Set your 12mm rivoli crystal in these high-quality sew on gold plated round prong settings to make beautiful jewelry. You can sew these down onto foundation, leather or Ultrasuede and use them as part of your bead embroidery designs. You can string a couple of strands of wire or thread through the holes in the base and make a fancy looking multiple-strand bracelet or a necklace. You can also use them in bead weaving to create classy intricate-looking pieces.