40 Pieces of Square Acrylic (Plastic) Flat Back Rhinestones are 12mm or about 1/2" diameter. 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 Square Acrylic (Plastic) Flat Back Rhinestones are 12mm or about 1/2" in diameter. CPSIA and RoHS compliant. Professional Grade. Perfect for jewelry making, fabric embellishments. Great for garments embelishments Costume making, cosplays. Also Perfect for cards and 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. Use your own glue. These are NOT self adhesive (stick on)