A=9,60 mm; B=12,20 mm; C=2,40 mm, Sterling silver (AG-925)
A=25,00 mm; B=4,50 mm; C=1,20 mm, sterling hopea (AG-925)
a=15,00 mm; b=11,50 mm; c=1,00 mm; d=2,10 mm, sterling hopea (AG-925)