The Vixen Optics 8x21 Atrek DCF Binocular gives you a versatile and capable optic that easily fits in the palm of your hand. Its anti-reflection fully multi-coated optics and compact BK7 roof prisms produce bright and clear images with improved contrast and accurate color representation. The lightweight housing is made to withstand use in rain showers and the rubberized armor offers protection from impacts and drops while providing a slip-resistant grip. An exceptionally-wide interpupillary distance range allows both children and adults to easy use them, and the closed-bridge design gives the Atrek a solid feel in the hand. The low-profile focus wheel enables easy focusing with either hand, and twist-up eyecups makes it easy and comfortable to use with or without eyewear.