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1. The manual turning equipment is equipped with two locks (one zipper, one padlock), and the air lever brake anti-turning device is installed above the lock, double safety guarantee. The rear of the flipper box is equipped with flip-up end shock absorption damping flip-up deceleration device, more intimate protection of your equipment (applicable to monitors within 20 inches) 2. Structure: just open the lock when in use, the LCD screen will automatically flip up , The keyboard is also automatically opened at the same time. When not in use, you can manually press the flip panel. The entire flipper is flush with the desktop, and the product has functions such as dust-proof keeping the desktop flat and beautifying the desktop. 3. Size: 19 inches / 22 inches / 24 inches / 27 inches 　 Color: off-white / matte black / army green