Add an engraved charm to an existing bracelet. Charms are electroplated stainless steel for our bangle and beaded bracelets.• Disc Sizes: 13mm, 16mm, 19mm, 22mm• Small or Large Heart Choose either a font, birth flower, zodiac, or custom handwriting for your engraving. To place on at home, you will need pliers in each hand. Twist the ring of the charm open, hook to the bracelet, then twist the ring closed. See photos for instructions.