Product code: A-592 Features and specifications All rings are beautifully sculpted and are well designed material 316 steel, also known as marine-grade stainless steel, is an alloy of chromium, nickel, molybdenum steel that has relatively good strength and corrosion resistance. 316L is the low-carbon version of 316 stainless steel. 316L surgical steel is a common choice for biomedical implants, as well as for piercings and body modification implants. Hand-polished and shiny Measure Not adjustable From 7 to 14, for details, see the size chart