American football is a very intense game, and blocking, interception and collision are all indispensable parts of the game, which can also be said to be a major feature of American football. In order to protect the safety of players and avoid delaying the game due to injuries, NFL and NCAA both requ......
Read MoreThe eye is the most sensitive photoreceptor of the human body. Therefore, in order to protect the eye, it is best to wear a professional hockey sun visor when skiing/skating. It can not only prevent ultraviolet rays from burning eyes, but also prevent cold wind from irritating eyes.
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