Fuji Guides CULG guides are heavy duty boat guides that are constructed from heavyweight stainless steel with center bridges for extra ring support and bright chrome finishes for beauty. Fuji CULG guides utilize Hardloy rings which are produced from a special blend of high grade Aluminum Oxide. Because the Hardloy rings are diamond polished and permanently mounted to their frames, they result in lighter weight, greater heat dissipation and decreased line wear. Fuji CULG guides can be used with Fuji CULT tops.