Lock and Key Love and Commitment Ring - (two piece break apart ring style). 316L is the highest grade of stainless steel used in the jewelry market. It is so good at resisting fade, rust, and corrosion, that it is used in architecture as well as in marine environments. At the same time, it is safe to use for medical purposes inside the body. For this reason the stainless steel rings we carry are made with this same grade of steel. It will not fade, change color, or leave stains on your body. It doesn't even require any maintenance to keep it looking new. Shopping Tip: To order similar style rings in different sizes, select the desired ring size and then click "add to cart." Choose another size and click "add to cart" again.