It would be very helpful if you included a measurement I've seen at other sites, and that is the amount of space between the front and back sides when it is open; that is, the depth of the pendant the bail can accomodate. The bail is of use to me because it doesn't open wide enough to accomdate my pendant.
I buy these all the time. They are very sturdy, good quality and a good price. I use this bail with the 39mm Swarovski pendants and they are beautiful.