Adjustability: Most models offer multiple height or angle settings (commonly 6 to 10 levels) to help improve sitting posture and reduce neck or back strain.
Compatibility: They generally support a wide range of devices, typically laptops and tablets from 10 to 17.3 inches.
Design: Made from lightweight aluminum alloy, they often include non-slip silicone pads to keep the laptop secure and prevent scratches. The hollow design also promotes better airflow for cooling.