Name:HD monoculars
Magnification: 8 times
Objective diameter:40mm (All optical)
Eyepiece caliber: 10mm (All optical)
Prism system: Roof system
Prism material: BAK4
Adjust system: Eyepiece+objective
Exit pupil diameter: 6mm
Waterproof index: Daily waterproof
Coating: High quality multi-layers green film
Monoculars body material: Plastic steel+Rubber
Size: About 145X52X40mm
Weight: About 280g Powerful Binoculars High Power Adult Kid Bird Watching Traveling Night Scopes Waterproof Range Finder Reflector Telescope Astronal Science Refractor Tripod Astronomy Beginners Riflescopes Microscopes Monoculars professional