Open hollow heat dissipation, no structural shielding, enhance air circulation, speed up heat dissipation, and more beneficial to computer ventilation.The vertical laptop stand is made of lightweight, high-strength aluminum material which is reduces the weight of the bracket, increases the bearing capacity.Product specifications:Material: Aluminum alloyThe package includes: 1 x Notebook stand.note:1. Chromatic aberration: Since each display with different resolutions has a slight color difference is allowed, please prevail in kind!2. Measurement error: Due to manual measurement, it is allowed to have an error of 2~3 cm, please prevail in kind!3. After-sales service: If you have any product quality problems, please contact us as soon as possible.