Fuji ICMNSG Guides 

SiC rings were also the first rings to be mounted directly to the frame, which reduces weight, increases heat dissipation, and amplifies line sensitivity. Ion Plated Chrome deep pressed frame, Silicon Carbide Ring. MN is a slightly "beefier" LN with the capability to be used as a surf rod stripper or a casting rod running guide. Extreme versatility in a proven package that has remained "perfect" for 3 decades. Matching Tip ICFST.