This simple little Sterling Silver Wedding Band is used as either just a tiny band or thumb ring and it's perfect as a Toe ring too, because it goes all the way around so it won't pinch you. The Half Round Dome Shape of this Ring Is the Most Popular shape in Bands. Because of manufacturing difficulties in making this kind of ring, and because it take s more silver to make it, this is only found at better retailers. This Ring is 2 mm thin. And because it's Nickel Free sizing and engraving of this ring is no problem ©.