This premium, open-hinged short-to-long range roof prism binocular, the Sig Sauer ZULU7 10x42mm HDX are lightweight binoculars utilizing the industry leading HDX optical design that combines extra-low dispersion glass with high light transmittance glass to provide you with the maximum in color, image brightness, and absolute clarity. Fully multi-coated roof prism binocular incorporates super high reflectance phase-coated BAK4 prisms for unmatched resolution and image contrast. The ZULU7 binoculars incorporate a magnesium housing to ensure they can survive rugged conditions. Tripod-compatible and includes tethered lens cover, strap, lens cloth, and padded case.