Oval 18x13mm or about 3/4" x 1/2" flat back acrylic (plastic) cabochons. 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 Oval 18x13mm or about 3/4" x 1/2" flat back acrylic (plastic) cabochons. Absolutely perfect for decorations of all kinds. For garments and crafts. Lead Free acrylic (plastic) safe for skin and can be used as face jewels. Add dimension and sparkle to your projects with these fine quality acrylic gems. Easy to use, fun to do. Smooth with a flat back. CPSIA and RoHS compliant. Professional Grade. Perfect for jewelry making, fabric embellishments. Perfect for jewelry making and garments embelishments Costume making, cosplays. Also used for cards annd invitations, face painting and body art. Domestic made high quality gemstones are also highly suited for apparel and accessories manufacturing. Since they lead free they are 100% safe for skin and can be used as body gems.