3.5mm Width||Comfort Fit||Hypo-Allergenic Stainless Steel||GINGER LYNE COLLECTION - Proud US Owned Corporation. We are a US Registered Trademarked Brand||Black Plated||Stainless Steel Black Plated 3.5mm Wide Single Solitaire Crystal Wedding Band Ring from the Ginger Lyne Collection Band Width 3.5mm Metal: 316L Stainless Steel Plating Black Stone: Crystal