Sweat-resistant and suitable for those with metal allergies. Mini-sized hearts that aren't overly sweet, perfect for any style! ⚪︎Color □ Gold □ Silver ⚪︎Material Surgical Stainless Steel 316L Length can be adjusted simply by pulling the string ◎ Stainless steel is a rust-resistant material, but it does not mean it will never rust depending on how it is used and stored. To ensure long-lasting use, we recommend wiping it with a cloth if it gets wet. ※Allergies have various causes. Please note that this does not guarantee that an allergic reaction will not occur. Material...Stainless Steel