Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.388" or 35.3 mm
Fit range is .01" under to .025" over the measurements stated above.
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.432" or 36.4 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.457" or 37 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.468" or 37.3 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.485" or 37.7 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.516" or 38.5 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.55" or 39.4 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.57" or 39.9 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.605" or 40.8 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.66" x 1.45" or 42.2 mm x 36.8 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.66" or 42.2 mm
Use this Eyepiece Cover if the outside diameter of your scope eyepiece measures 1.675" or 42.5 mm