Detachable lens barrel, the distance between the lens vessels can be adjusted to fit the eyes and make viewing more comfortable Full 10x magnification, 34mm object lens diameter, clearer, even in low light condition The multi-coated green film optics provide maximum eye relief fatigue and make your vision clearer, clearer and deliver sharp images. Low light level night vision built-in design, helps you see things in weak light condition. The alloy spectacle arms wrapped with natural rubber, can be bent without damage because you want to fit it more comfortably in your face. And the nose pads can also be adjusted to make it fit well. These binoculars opera glasses are designed to leave your hands free when you cheer for sports games or fishing Specifications: Magnification: 10X Diameter objective: 34 mm Interpupillar distance: 58 mm ~ 74 mm Material: Optics lens, FMC green film Focus System: Binoculars single focus Weight: 0.1 kg Package Contents: