Stuart Big Game Roller Tops have a completely user replaceable roller tip head design, Gold finish tops are Zirconium Titanium Nitrate Coated.Rollers are recessed into a Stainless Steel side plates the tip frame. Stainless roller shafts and rollers are isolated from the frame with two self lubricated form fitted side plates. High torque lock patch screws are used on all fastening points. Generous knot clearance matches that of guide sets.