Metal allergy対応 [Silver - Size 9] Curved Ring / Surgical Stainless Steel / 316L "This ring's curved design gives a stylish impression. It has a moderate volume and adds an accent to your hand! This design can also be worn by men. It can be used unisex." ・Metal allergy対応 ・No discoloration ・Rust-resistant and water-resistant ・Can be used in the bath, hot springs, pool, and sea ・Durable material that can be used for a long time ・Surgical stainless steel also used in medical scalpels