BNISE Binoculars for Adults, 10x42 HD Asika Military Telescope for Hunting and Travel - Compact Folding Size - High Clear Large Vision - Black Color BaK-4 prisms and multi-coated optics offer crisp clear images with improved light transmission 10x magnification, 42mm objective lens binoculars; Ultra wide field-of-view with long eye-relief Non-slip rubber armor and Soft Texture Grip absorbs shock and provides a firm grip Lightweight (21.7 Oz), magnesium chassis and soft touch grips; O-ring sealed and fogproof construction ; Includes a soft Microfiber carrying bag & neck strap BNISE Worldwide Lifetime Warranty:100% No-Hassle Money Back Guarantee. If you're not happy with your purchase, we will give you a full refund. Satisfaction Guaranteed