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