Feature 1. Improve ergonomic posture to moderately increase the height of the notebook screen and alleviate cervical fatigue and numbness of the wrist caused by long-term use of the notebook computer. 2. Aluminium alloy material, solid and stable, high frequency typing does not shake, easy to learn and use. 3. Can adjust a variety of angles, can raise or lower the angle to fit a comfortable sitting position, and care for the cervical spine. 4. Fold the structure to prevent the laptop from slipping. 5. Multi-functional design, can be used as a computer or tablet stand.