HEIGHT ADJUSTMENT: Raise your computer monitor, laptop, or any other device by 100mm, 129mm, or 140mm from your desk to create a comfortable viewing position and a healthier sitting posture, reducing neck and back strain. Simply press the button on the leg and lift/lower the platform to adjust between height levels. EASY ASSEMBLY: Our laptop and monitor stand comes with 1 platform and 4 legs. Just screw the 4 legs into the platform. No tools required – assembly takes just a minute. VENTILATED DESIGN: A sturdy platform with ventilated holes prevents overheating and keeps your device cool. ROBUST MATERIAL: The large 370 x 235mm durable metal shelf fits most flat-screen monitors, laptops, and printers, with a maximum support weight of up to 20kg. Non-slip rubber pads prevent sliding or damage to your workspace. The elegant, modern black design complements any desk while providing extra storage space underneath.