Square Clip On Glasses Efficient Blue Lights Blocking 180° Vertical BL

Efficient Blocking: Through a variety of different UV materials and multi layer coating technology, the lens can block more than 99% of harmful blue lights between 40Onm‑500nm. 180° Vertical Flip: The glasses clip can be flipped vertically 180°, which can be flipped up directly when not in use, more convenient to use.

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