Contour Classic Silicone Ring - PlatinumThe Contour Classic Silicone Ring from Enso Rings is the ultimate way to make your mark. Thanks to a special blend of valuable materials, this ring offers a natural metallic finish and shine that is unmatched by others, all while maintaining the flexibility and comfort of the Enso brand. Sizing Recommendation: We recommend ordering your standard size (or size down if you're a half size) Silicone in Platinum (Metallic dark grey with hints of silver) 7.