Review on Opticron Rubber Objective Diameter 44 46Mm by Adam Rogers

I went through several sets of interchangeable lens caps and came to the conclusion that the thin stripe between the round part of the binocular mount and the actual lens cap is getting used earlier or always break later. Just plan to swap out the lens caps when this happens. Oddly enough, this product is hard to find on the internet. I was happy to discover this product from Opticron. As other reviewers point out, it's important to carefully measure the outside diameter of the lens before ordering. Otherwise, the lens cap will be too small to fit on or too big to stay in place. This is not a high tech or glamor product.