Classic smooth oil dripping men's zinc alloy ring $ 4.26 Material: Alloy Color: platinum, golden Size: No. 7, No. 8, No. 9, No. 10, No. 11, No. 12 US Size5.5 6.5 8 9 10 11 12 Internal diameter 16mm 17mm 18mm 19mm 20mm 21mm 22mm Perimeter 51mm 53mm 57mm 59mm 62mm 64.6mm 67.2mm