Fuji’s Corrosion Control treatment is the latest in low maintenance stainless guide frames. In tests carried out by an independent automotive corrosion testing facility in Japan, BC (Corrosion Control Matte Grey) frames outperformed all competitive stainless frames, including 316 Stainless, with Corrosion Control Frames showing no corrosion for 5 times longer than standard stainless steel. Multi-purpose guide for lure and surf.