Vortex makes these tethered objective lens covers for compact binoculars with outside barrel diameters of 35 millimeters.
Note: These covers are sold as a set.
Fits like a charm and easy to use
Ken from Orange County, CA
Tethered Obj Lens Covers were order to fit a 8 X 25 set of binocs given to me as a present. I measured the outer dimensions of the Obj Lens and used the data from your website to estimate the size of the covers. It worked beautifully and covers are much better than the detached versions that came with the binocs. Would recommend them to anyone who wants to protect their investment from scratches and prying fingers of little kids in the family. They fit a bit snug, which is all the better for keeping the lens protected. The covers do not appear to collect/attract dust through static electricity like the detached originals.