Brass Sew on Prong Settings, Finding, Open Back Claw Settings for Pointed Back Rhinestone. Takes Oval stone 13x18mm. Size: about 15mm wide, 20mm long, 6mm thick, tray: 18x13mm. Fold over prongs to secure stone. (Stone not included.) 4 small holes to sew to backing. Perfect for bead embroidery. Can also string in bracelets, necklaces, etc.

13mm x 18mm By the pack of 5.