Titanium, 9mm Comfort-Fit Satin-Finished Four-Sided Design Ring (sz 6-14) Aetonal. $92.00. Comfort fit interior insures a lifetime of comfortable wear.. Machined from a solid piece of premium hi-tech metal for a stronger more durable ring.. Manufactured to your specifications and finger size. We never size a ring up or down to fit you.. Lifetime guarantee against manufacturing defects and lifetime free ring sizing.