• Set includes: Pentax Z Series ZD 10x43mm Roof Prism WP Binoculars, Binocular Harness, Lens Cleaning Pen • Coating: Special protective coating repels dust, water and grease to keep optics clean and maintain the highest image quality • Durability: The magnesium alloy construction balances durability and weight. The lightweight design is built to handle the roughness and tumbled conditions of life's adventures • [Sharpness] The aspherical lens element provides exceptional sharpness from edge to edge. Make sure the items at the edge of your view are as sharp as the ones in the center. Phase coated roof prism provides sharp, high contrast images with maximum light transmission • EXTREMELY WATERPROOF, Nitrogen filled (JIS Class 6) to handle the toughest weather conditions (submersible to 1 meter)