Product information:
Name: Natural high magnetic black gallstone shank ring
Size: Width 6mm 6‘7’8’9’10’11’12’
Weight: 4g 6g 8g 10g 12g 14g 16g
Material: Natural high magnetic black gallstone
Colour: Black
Size: No. 6, No. 7, No. 8, No. 9, No. 10, No. 11, No. 12