Features: brand new and high quality. Advanced FMC multi-layer broadband coating technology, and high brightness. It adopts large-aperture apochromatic objective lens, high-precision BAK4 prism system, multi-layer coating, for sharp for image. Metal mirror body, rubber overall shoe cover, shock absorption, non-slip, comfortable to hold. The widened nylon soft shoulder strap makes it very comfortable to carry. It is especially suitable for traveling, watching concerts and competitions. Ultra-short focal length, especially suitable for close observation (1.2 meters). High eye-point design, spin-up eye mask, easy to use for those who wear eyes. Specifications: Material: Roof Prism& BAK4 Material Package Size: approx 175x155x72mm/6.89x6.1x2.83 inches Color: Black/Green Magnification: 12 times Objective lens diameter: 42MM Exit pupil diameter: 5.2MM Exit pupil distance: 20mm Eyepiece diameter: 25mm Field of view angle: 7.4 degrees Field of view: 129 meters/1000 meters Optical coating: FMC full-surface multilayer blue coating Waterproof performance: waterproof Nearest focal length: 1.2M Eye mask form: spin-up eye mask Package Includes: 1x 12×42 Binoculars note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.