Tungsten Carbide rings are 10 times harder than gold and five times harder than titanium. The inner band is slightly rounded for a comfortable fit; add reliability and you've got a ring that really delivers. When you want to make an impression, but dont want to make it too obvious, this sleek black tungsten 8mm band is the perfect choice. The ring features a two-tone finish with a polished surface and a thin brushed center stripe, giving it just the right amount of contrast. The perfect combination of subtle and trendy. An attractive modern touch to a classic design.