Approximately 17x5x12mm pinch bail findings. Measurements include top loop. Front-to-back hole alignment. Made of anti-tarnish brass (tarnish-resistant brass). These jewelry bails are lead free and meet the EU Nickel Directive. Fits up to 4mm chain or cording. Manipulate the bail gently to find your best fit. These bails have long prongs, to fit a wide variety of pendants. For thinner pendants, trim the prongs with flush cutters.