Sew On Teardrop flat back acrylic (plastic) rhinestones are 13x18mm or 1/2" x 11/16". 2 Holes for sewing. Includes 50 flat back sew on beads. Easy to use, simply sew them onto your dress, costume, garments, diy projects or use your own glue. They are lead free (safe for skin!) and can 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 For adult crafting, for professional / hobby use. Not intended for children under 14.