Hawke 12x50 Endurance ED Green Binoculars feature extra-low dispersion glass for the optimum clarity and fully multi-coated optics to produce sharp images. The smooth focus knob features 1.2 turns, fits easily within reach and operated extremely well - even with gloved hands. Feature high resolution phase corrected BAK-4 roof prisms and a lightweight rubber coated top hinge chassis. The magnesium alloy body with a leatherette finish features a waterproof twin hinger pocket sized binocular design. Stay-on lens covers provide maximum lens protection and the twist-up eyes cups with position stop for eye relief.