Glad to present The barbed wire Ring Stackable Ring 3dmodel 6.0mm width FINGER SIZE: 4 WEIGHT: 4.72 gr in 14K gold(depend on finger size) (NOTE : this is just 3d model for printing, NOT ring in GOLD)

File format: STL and 3dm Ready for 3d printing The barbed wire Ring Stackable Rings without any supports (because each 3d printer needs special supports for 3dmodel)

YOU CAN FIND FULL FINGERS CHART 4-12 (0.5 US step) RING 6 mm wide there:

https://www.cgtrader.com/3d-print-models/jewelry/rings/the-barbed-wire-ring-size-4-12-usa