40.7-42mm Binocular Rainguard/Eyepiece/Eyecup Cover/Dustguard/Eye Guard Cap Rubber Black, 40.7-42RG

Good product. Fits my binoculars. Very reasonably priced. Hope I do not lose these!

These are good snug fit for my Nikon Monarch M5 12 x 42 binocs

This eyepiece protector fits my binocular eyepiece fine. It works but I'm not overly impressed with the left side binocular strap holder. It's an open ended holder for that side strap, instead of being closed-ended like the other side. The design for that reason is not great, but I will say that for being China made, the rubber seems to be of decent quality, though I haven't used it yet in the field.

Fits fine on 8x42 Vortex Diamondback HD just like the original.

A perfect fit for the eye pieces of my Minolta Classic II binoculars. These are a very hard replacement to find. Quick shipping and excellent quality!

If you measure the size of the objective you are wanting to cover, these will fit nicely. The rubber/plastic is heavy and flexible. I am actually surprised at how resilient it seems. With a bit of heat from a hair dryer or heat gun, it will conform and fit even better. I was reluctant to take the risk as the items are expensive for what you actually get, but they work and replace old and lost covers that did not fit well and broke/cracked. This is a good buy if you value your optics.

Perfect fit for our Sig Sauer binos. They came with two separate caps. Who wants to deal with that? Almost always when I’m using the binoculars at home it a rush to see something before it’s too late. This set of connected lens caps is perfect. I don’t have to worry about dropping them, I installed a tether to the loop provided. They’re tight enough to stay on but loose enough that removing is easy.

They fit a little bit loose.