Adjustable fishing telescope, according to the different visuals to adjust the focus. High-quality optics for comfortable observation. A white lens and little brown lenses can prevent the water surface from reflecting glare. Adjustable ABS Focus Glasses Telescope Magnifier Binoculars For Fishing. A great fishing accessory for fishermen, also for watching TV, shows, games and distant signs, you can easily watch without your hands.Magnification : 300 -400%