Frosted Round 13mm is about 1/2" flat back acrylic (plastic) cabochons. Also called MoonGlow Lunasoft Cabochons They have a foil backing that reflects light and makes it glow from within! Good for creations at scrapbook and craft works, Perfect for card making, scrapbooks and body art. Professional grade for jewelry making, fabric embellishments, and commercial displays. Add your own glue. Used for cards and invitations, jewelry, face painting, costume making, cosplay embelishments International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.