42mm Nomad Sunshades CNC MACHINED FROM 6061 ALUMINUM THREAD INTO EITHER SIDE OF THE 42MM NOMAD FEATURES INTERNAL GROOVES TO REDUCE GLARE AVAILABLE IN SEVERAL STYLES: MDR: FLAT METAL RING WITH WHITE CENTERING CIRCLE, DOES NOT REDUCE INSIDE DIAMETER 1-STEP: DOES NOT REDUCE INSIDE DIAMETER, FEATURES A WHITE CENTERING RING 2-STEP: REDUCES INSIDE DIAMETER TO 35MM, FEATURES TWO WHITE CENTERING RINGS 3-STEP: REDUCES INSIDE DIAMETER TO 35MM, ENLARGES OUTSIDE DIAMETER, FEATURES THREE WHITE CENTERING RINGS LENS COMPATIBLE: LONG SUNSHADE WITHOUT CENTERING RINGS THAT THREADS INTO LENSES ONLY DOES NOT THREAD INTO THE SCOPE BODY LONG: LONG SUNSHADE WITHOUT CENTERING RINGS THAT THREADS INTO THE SCOPE BODY MADE IN THE USA 35mm Nomad Sunshades CNC MACHINED FROM 6061 ALUMINUM 1, 2, AND 3-STEP SUNSHADES THREAD ONLY INTO THE EYE SIDE OF THE SCOPE FEATURES INTERNAL GROOVES TO REDUCE GLARE AVAILABLE IN SEVERAL STYLES: MDR: FLAT METAL RING WITH WHITE CENTERING CIRCLE, DOES NOT REDUCE INSIDE DIAMETER 1-STEP: DOES NOT REDUCE INSIDE DIAMETER, FEATURES A WHITE CENTERING RING 2-STEP: REDUCES INSIDE DIAMETER TO 29MM, FEATURES TWO WHITE CENTERING RINGS 3-STEP: REDUCES INSIDE DIAMETER TO 29MM, ENLARGES OUTSIDE DIAMETER, FEATURES THREE WHITE CENTERING RINGS LENS COMPATIBLE: LONG SUNSHADE WITHOUT CENTERING RINGS THAT THREADS INTO LENSES ONLY DOES NOT THREAD INTO THE SCOPE BODY LONG: LONG SUNSHADE WITHOUT CENTERING RINGS THAT THREADS INTO THE TARGET SIDE OF THE SCOPE BODY WILL NOT THREAD INTO THE EYE SIDE OF THE SCOPE BODY MADE IN THE USA