The SIG SAUER ZULU6 42mm Objective Lens Cover is a factory-engineered, low-profile protective cap designed to shield the front objective lenses of 42mm SIG SAUER ZULU6 HDX and ZULU6 HDX PRO image-stabilized binoculars. Molded from a durable, flexible black polymer in a unified one-piece dual-barrel design, it contours tightly around the 42mm objective housings to stay securely in place during rugged backcountry transport without adding unnecessary bulk. Built to prevent dust, dirt, moisture, and scratches from compromising your glass between glassing sessions, this genuine OEM replacement accessory pops off quietly and effortlessly when it is time to spot game.