A Pair of Binoculars Rubber Eye Cups Eye Guards Caps ID 40MM/1.57”Suit for 39mm/1.5“ - 42mm/1.65" Microscope Eyepiece Telescopes Eyecups

Not as good as the pair I lost, but beats being without. Waiting to see if they age well.

Fit great, made my binoculars work better

Binocular eyepieces measure 39 mm. Description says these eye cups are suitable for 39 to 42 mm. The eye cups received are much too large and do not fit. Will be returning. Edit to above. Not only are the size of these eyepieces falsely advertised, the free returns also turns out to be false. I was charged a re-stocking fee when returned. IMO AVOID.

Be cautious when ordering these, say thirty nine millimeters, but they don't have the groove to go into the slot of the binocular. They slip over the lens area, but they do not fit tightly

Good quality and perfect fit.