Orders of 2 or more will receive a free gift.1. [ADJUSTABLE STAND] The vertical laptop stand can easily adjust using the small wrench. So it is compatible thickness laptop. Please check the thickness of your laptop before purchasing it. 2. [SILICONE PAD PROTECTION] The vertical laptop stand is shaped as a 3D curved surface to prevent scratching. In addition, the 3-piece silicone pad also helps protect your laptop from scratches. 3. [BOOK HOLDER FUNCTION] Adjust the hold position, the vertical laptop stand can become a book stand in a few seconds. 4. [NON-SLIP AND STABLE] The vertical metal laptop stand designed with a large base can hold the laptop stably and waterproof. The bottom silicone pad can effectively prevent slipping, thus improving the stability. 5. [ALUMINUM ALLOY MATERIAL] The vertical laptop stand is made of high quality aluminum alloy. It is perfectly compatible with Macbook because they have the same hardware. This makes the combination harmonious.