Bosma fun in series 8X42 / 10X42 / 10X50 binoculars HD water fog

 Bosma - Chinese leading brand binoculars, telescopes largest domestic enterprises, listed companies; fun in series --- Bosma new, stylish, elegant; large eyepiece viewing glasses --- long without fatigue; BAK4 prism --- image clear, bright images; prism silver, phase membrane technology --- Bosma Binoculars first new technology;