The new Nitro-sport range of roof prism binoculars feature a stylish modern open hinge design, making them lightweight and easy to handle. Great for birdwatching and general observing, all models feature high index BaK-4 prisms and multi-coated optics. The 8x42 and 10x42 models (see seperate listing) have the additional benefit of phase-coated and silver-coated prisms for increased brightness and image contrast, as well as being fully multi-coated on all glass to air surfaces. Waterproof and nitrogen-filled for clear, fog free operation. Twist-up eyepieces and suitable for spectacle wearers. Black protective rubber armouring. Integral tripod bush. Supplied with neck strap, eyepiece rain-guard and soft case.