8x25 WP Blackhawk Compact 100% waterproof and fogproof, Fully coated optics, BAK-4 prisms, center focus knob for precise focusing, Non-slip and ergonomic rubber design for a secure grip, shock-absorbing rubber armor, Solid and sturdy construction roof prism binoculars, Ideal for all outdoor activities in all-weather conditions, Includes carrying case neck strap and lens cloth, Limited Lifetime Warranty Features: O-ring sealed for complete waterproof protection Dry nitrogen-purged and sealed to prevent fogging, clouding and moisture damage Fully coated optics for increased clarity BAK-4 prisms for crisp images Large knurled center focus knob for precise focusing Optimum long eye relief with twist-up eyecups (on midsize models) Non-slip and ergonomic rubber Specifications: Magnification: 8x Objective Lens(mm): 25 Prism Type: Roof Prism Glass: BAK-4 Exit Pupil(mm): 3.1 Optical Coating: Fully Focus System: Center Field of View (ft@1000yds/m@1000m): 341/114 Close Focus(ft/m): 26/8.0 Eye Relief(mm): 10.5 Weight (oz.): 14.5