Ergonomic design: Adjust Foldable Laptop Riser to the ideal height to minimize neck fatigue. Sit properly in a comfortable posture and prevent neck and back pain Adjustable & Detachable: You can use Notebook Stand to set the height to suit your needs. Push inward to fold the MacBook stand for compact storage and use the Computer Holder again with one step - just pull collapsible laptop stand open from the bottom to the maximum level to secure the Laptop Stand for desk Ventilation & Cooling: The open design at the bottom of the Notebook Podium Stand enhances airflow. Ventilation hollow design of lap top Stand helps computer on cooling, prevent overheating Compatibility: The Laptop Holder is a great accessories works with most tablets and laptops (1017 inches), such as MacBook Pro/Air, Microsoft Surface, Lenovo, Acer, Dell, HP, ASUS