Vortex Razor 42mm Binocular Objective Lens Caps of (Set 2)

Vortex Razor 42mm Binocular Objective Lens Caps (Set of 2) Cap inner diameter 51mm, comes with a ring to prevent it from falling off. May be able to be attached to binoculars with an objective lens outer diameter of 51mm. Set of 2 objective lens caps for Vortex Razor 42mm binoculars. Lens caps for Vortex Razor HD with 42mm objective lens diameter. Cap inner diameter 51mm. Comes with a ring to prevent it from falling off. May fit binoculars with an objective lens outer diameter of 51mm.