Material: 925 sterling silver (stamped S925). Length 12 mm (0.47"), Width 2.2mm (0.08"), Pin Length: 2.3mm (0.09"); Pin Thickness: 0.7 mm (0.028") 23G. Length 14mm (0.55"), Width 2.2mm (0.08"), Pin Length: 3mm (0.12"); Pin Thickness: 0.7 mm (0.028") 23G.