Heart acrylic flat back rhinestones are 18mm or 11/16". High quality, faceted with flat back and silver backing. Great for jewelry making and costumes. They are lead free (safe for skin!) and used as body gems! 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