HD Wide-Angle View - High quality precision design featuring all high end glass optics (FMC Superior BAK-4 Green), the high power monocular telescope provides 8x magnification with a 42 objective diameter lens mm, allows you to find best view in outdoor adventures.High Quality - Large BAK-4 FMC multi-coated FMC lens elements reinforce key function of a monocular. High light transmittance reaches up to 99.9%. Minimal distortion light reflection, multi-coated optics for superior light transmission brightness.Comfortable Practice - This compact monocular (5.7& 39;& 39;X1.9& 39;& 39;X1.5 & 39;& 39;) is convenient for one-handed operation. The adjustable eye cups can be easily quickly twisted for optimal viewing with or without glasses. The rubber armor with increases friction, keeps it from slipping out of your hand.Wide application - the easy focusing HD monocular ideal for hiking, hunting, rock climbing, bird watching, viewing wildlife landscapes, scope, surveillance, concerts, travel, etc.Life-Waterproof - Nitrogen filled waterproof, this monocular lens dust cover can prevent lens dust / moisture / debris, make sure you see everything in clear detail. Its rubber finish has stood up, durable outer protection helps withstand harsh weather conditions.