Ring Size:   S: 4 CM/1.6 INCH M: 4.5 CM/1.8 INCH L: 5 CM/2.0 INCH   Length: The cage length is 5.6CM/2.2" with an inside diameter of 3.5CM/1.4".   Material: 304 stainless steel Color: Sliver Package: OPP Bag