Eyeskey 10x42 High Powered Magnification Binoculars - Bright and Clear Range of View - for Travel, Sports and Wildlife - Comes with Case, Lens Caps, Strap Roof-Prism 10x42 Binoculars With True 10 Magnification And 42 Millimeter Objective Diameter Can Obtain Much More Spaces and Get More Sharp Image To Ensure Your Comfortable Viewing. Then Your Eyes Will Not Be Easy To Get Tired. Large And Smooth Central Focusing Knob Makes You Easy And Quick To Focus The Fast Moving Objects. And You Will Not Miss Any Exciting And Amazing Moments, Especially While You Are Watching Your Favourite Games. Adjustable Eye-Cups Is Easy And Rapid For You To Twist Up And Down For Optimal Viewing With Or Without Glasses. Fully Multi-Coated Green Films Eco-Glasses and BaK-4 Prisms Ensure You To Enjoy A Vivid And Meaningful Life While You Are On Outdoor Birding, Travelling, Sightseeing, Hunting, etc. These Lightweight Binoculars Are Equipped with User-Friendly features such as Twist-Up Rubber Eyecups, A Smooth Central Focus Knob and Flip Down Lens Caps.