Medium silver plated brass triangle bails for jewelry making. Approximately 8.3mm (5/16") along each side. 20 gauge. 370 pieces (2.6 gross) per ounce. For drops with straight holes. Easy and inexpensive way to hang Swarovski, glass, and hand made wood or stone pendants. Simply line up the wire with the hole, and squeeze shut using finger pressure or flat-nose pliers. To avoid scratching or chipping delicate materials, we recommend nylon-jaw pliers.