Cheap, and good option for small kids.
The 16x52 sign should mean that the front lens diameter is 52mm - not the tube from outside, and the magnification gives 16x bigger picture than what you see. This has 44mm front lens, and about 4x magnification. Lens are not green, not fully multi coated like in picture. Black from frontwise, with a small greenish dot when in direct light! The nitrogen fill is a dream in this price range. When you see the full plastic house with big gap around the focusing lens piece, you will understand why I think that nitrogen fill is not believable. So it's far away from description! Maybe you will read if I give five stars! I found much better options in this price range!

Very good product.
Well packaged.
Shipping method excellent.
Congratulations Banggood Team.
Five Stars.