Is the sun visor effective in blocking sunlight?

I'm thinking of using a sun visor to cover the sun.

I wonder if it will help because it's smaller than I thought, but is it as big as the moon?

1292 2016-04-05 Gentleman

I think it's for covering the sunlight because there's a sun in the name
It actually has a rain check function LOL
When it rains, you can open the window slightly to ventilate it.

Gentleman 9 years ago 0

A. 2

It's for rain protection, as the boss said.
It's good when you need to leave the window slightly open.
You can buy it yourself and attach it, so you can buy it online.

Gentleman 9 years ago 0

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