10prs of 925 Sterling Silver Ball Earring Posts Ball Back 2.5mm 3mm 4mm 5mm 6mm
This happens during the production process. The main reason is that the module is too small for stamping 925 or 990. (1) Ball Head 2.5mm/3mm/4mm/5mm/6mm: length 14mm, thick 0.8mm. What is Sterling Silver .