Great add on for my solar binoculars i just got these for my binoculars for deer hunting and bright sunny days with no leaves on the trees these are a must-have work awesome wish i would have had them before you will not be disappointed if you get these, they fit on 99% most binoculars pretty much i'd say not the super small little pocket size binoculars or some super big mongo things but regular ones they will fit just fine i like this item