This silver ergonomic laptop stand for desks tilts and lifts your laptop up to 4.7in 12cm from the desk surface to eye level for increased comfort and productivity – Height-adjustable 10.6 x 8.9in 26.9 x 22.6cm surface supports any laptop up to 22lbs 10kg Tension can be controlled with included tool – Vented all-aluminum construction improves airflow and heat dissipation, which reduces fan noise and heat stress on laptop hardware -Foldable lightweight design fits in a laptop bag