FANGOPHILIA X JULIUS 7 X DUAFLOW GANZ GRAF INNER-JOINT RING S size : US3 - US6 M size : US6 - US8 L size : US8 - US9.5 XL size : US9.5 - US12 This size means normal ring size. Not a joint part size. There is a slit on the back side of the ring. Size is adjustable. 077ACU21-SV 100% STERLING SILVER MADE IN JAPAN