HEIGHT ADJUSTMENT: Raise your computer monitor, notebook, or other device by 100mm, 129mm, or 140mm from the desk to create a comfortable viewing position and a healthier sitting posture that helps reduce strain on your neck and back. Just press the button on the leg and lift/lower the platform to adjust between the different height levels. EASY ASSEMBLY: Our laptop and monitor stand comes with 1 platform and 4 legs, all you need to do is screw the 4 legs into the platform. No tools required. One minute is enough. VENTILATED DESIGN: Sturdy platform with ventilated holes, this stand prevents overheating and keeps the device cool. ROBUST MATERIAL: Large 370 x 235 mm durable metal shelf fits most flat screens, laptops, and printers, maximum support weight up to 20 kg. Non-slip rubber pads prevent slipping or damage to your workspace. Elegant modern black design complements any desk while providing extra space under the stand for storage.