Large Oval flat back acrylic (plastic) rhinestones are 25x18mm or 1" x 3/4" Height: Approx 5mm or 3/16 Inch. Includes 20 High Quality Lead Free Acrylic Gems 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