I only tried it on once. It was too loose for me, so I'm selling it. **[Features of Surgical Stainless Steel 316L for Metal Allergy Sufferers]** 1. The highest-grade metal allergy-friendly material, also used in medical scalpels. 2. Extremely resistant to discoloration and rust. 3. Water-resistant, so you can wear it in the bath, hot springs, sea, and pool without worry. This material is very popular with those who have metal allergies, as well as those who don't, because it's "safe to wear all the time! Gentle on the skin!" **[What is 316L?]** Surgical stainless steel is a coined term combining "surgical" (medical) and "stainless steel" (rust-resistant steel). Among them, "316L" is used in accessories, a corrosion-resistant material also used in medical instruments such as medical scalpels and scissors. It is resistant to discoloration and is water-resistant, making it suitable for baths, hot springs, pools, and the sea. The biggest advantage is that it can be used by people with metal allergies. **◆Product Description◆** Triple ring design combining three rings. The moderate volume gives a sophisticated and stylish look just by wearing it. Size: 4: Inner diameter: 14.2mm 7: Inner diameter: 14.9mm 9: Inner diameter: 15.8mm 11: Inner diameter: 16.7mm 13: Inner diameter: 17.5mm 15: Inner diameter: 18.4mm **◆Product Details◆** Width: 0.3cm