This laptop stand is made of aluminum alloy, sturdy and could support laptop that up to 44 lbs. It has 2 adjustable heights that can adjust to a comfortable operating angle and height based on your actual need. The open design at the bottom of the laptop stand enhances airflow to prevent your notebook from overheating. The anti-slip rubber pad on the laptop stand could keep them from sliding away and help them to stay still. It is compatible with 9 to 17 inches devices such as Macbook, iPad, and more.