barska crossover waterproof binoculars 10x42mm10x42 WP Crossover, O Ring sealed for 100% waterproof protection, Dry nitrogen purged and sealed to prevent fogging, clouding and moisture damage, Fully multi coated optics to maximize light transmission for brighter images, BAK 4 prisms for crisp and clear images, Twist up eyecups, Large centre focus knob, Rugged shock absorbing rubber armour, Non slip and ergonomic design for a secure grip, Includes carrying case and neck strap, Limited Lifetime