Osprey Global 10x42mm BAK-4 Roof Prism Binoculars Black 10X42 binocular. Made with BAK-4 prism glass these binoculars come with a lifetime warranty. Specifications for Osprey Global 10x42mm BAK-4 Roof Prism Binoculars: Manufacturer: Osprey Global Magnification: 10 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 16.1 mm Exit Pupil: 4.2 mm Field of View Linear: 103 m at 1000 m Optical Coating: Multicoated Binoculars Focus System: Center Focus Interpupillary Distance: 55 mm Water Resistance Level: Waterproof Length: 5.63 in Weight: 1.9 lb Finish: Matte Fabric/Material: Glass Package Type: Clam Pack/ Plastic Magnification Type: Fixed Fogproof: Yes Shockproof: Yes Package Contents: Osprey Global 10x42mm BAK-4 Roof Prism Binoculars Osprey Global Warranty At Osprey Global we will repair or replace your Osprey product in the event it becomes damaged or defective at no charge to you. If we cannot repair your product we will replace it with a product in perfect working order of equal or better physical condition. You see it doesn't matter how it happened whose fault it was or where you purchased it. You can count on our warranty for all Osprey Global rifle scopes tactical scopes compact first focal planes red dots lasers binoculars bore sights and accessories. See Full Warranty Information here. Osprey Global 10X42 binocular: 10x42mm BAK-4 Roof Prism Binoculars Black