Stainless Steel Rings usually come in 2 types of specifications. 304L Stainless Steel Rings or 316L Stainless Steel Rings
316L Stainless Steel Rings have better pitting corrosion resistance than 304L Stainless Steel Rings which makes 316L Stainless Steel Rings is more pricey than 304L Stainless Steel Rings.
316L Stainless Steel Rings can last longer than 304L Stainless Steel Rings especially comes to in contact with seawater.
Some customers might prefer 304L Stainless Steel Rings as it is much cheaper and they prefer to change style regularly.
However some might purchase it for their partner and in which they preferred something that can last longer like 316L Stainless Steel Rings.