The Leica winged eye cups are the perfect addition to your Leica Noctivid binoculars. It maximizes the pleasure of observation to the top. Made out of black rubber, the eye cups are robust and flexible at the same time. If you donít need them, you do not have to take them off, you simply fold them down to the side. The Set for the Noctivid includes also a eye piece cover, that fits while the winged eye cups are on the binocular.