Size 13 Tungsten Carbide 8mm Mother of Pearl Mens Comfort Fit Wedding Band. Tungsten is about 20 time harder then 18K gold and 6 time harder then tool steel and 5 time harder then Titanium. it is also corrosion/scratch resistance.This ring is in perfect condition, it has been very well taken care of. Please call or text 661-301-1813 asking 120 or please make an offer Location: Oildale