Sterling silver bails are bright and shiny Use a small drop of epoxy or other glass adhesive to fix decorative glass to the bail. Bails measure 6 x 15mm (about 1/4" x 5/8"). 25 bails per pack. Cabochon by Delphi Artist Melanie Churchill. Finishing your Glass Cabochons is as Easy as 1, 2, 3 1. Apply bails with glue, like Triolyse #77201. 2. Hold bail to jewelry to secure adhesive. 3. Proudly wear custom glass art jewelry.