Sun Optics Compact Roof Prism Rubber Armored Binoculars Matte Black. This Outdoor Binocular from Sun Optics is made with BAK-4 roof prisms and fully multi-coated optics to provide you with a binocular that throws off incredibly clear images. The Sun-Optics Roof Prism 10x25mm Binocular is Dry nitrogen filled to be 100percent waterproof shockproof & fogproof. This Sun Optics Binocular has a no-slip non-glare rubber armored material that will make sure you have the perfect grip on your binocular. For a great way to make sure your path is clear choose the Sun Optics 10x25mm Roof Prism Binocular. Specifications for Sun Optics 10x25mm Compact Roof Prism Binoculars: Manufacturer: Sun Optics Color: Black Magnification: 10 x Objective Lens Diameter: 25 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 0.612 in Exit Pupil: 4.1 mm Optical Coating: Fully Multi-Coated Binoculars Focus System: Center Focus Weather Resistance: Yes Water Resistance Level: IP67 Weight: 23.3 oz Finish: Matte Package Type: Box Included Accessories: carry bag Strap Magnification Type: Fixed Features of Sun Optics 10x25mm Binocular w/ BAK4 Roof Prism: BAK-4 prism Fully multi-coated optics Center focus No-slip non-glare rubber armored Dry nitrogen filled 100percent waterproof shockproof & fogproof Carrying case/strap Package Contents: Sun Optics 10x25mm BAK4 Roof Prism Compact Binocular CB52-1025WP Sun Optics CB52-1025WP: 10X25 Compact/Roof Prism/Rubber Armored/ Binoculars