This top quality, ergonomically designed binocular features BaK-4 prisms and fully coated optics with high transmission coatings for excellent optical performance. The Aluminimum alloy, rubber covered frame makes the binocular robust and well balanced. Waterproof O-ring sealed and nitrogen-filled fog-free construction. Twist-up Eyecups. Features a convenient, centrally located dioptric adjustment wheel. Supplied with case and neckstrap. Colour/Material: Black Rubber.