ADJUSTABLE HEIGHT: Elevate your computer monitor, notebook, or any 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. Simply 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 are required. It only takes a minute. VENTILATED DESIGN: Stable platform with ventilated holes, this stand prevents overheating and keeps your device cool. ROBUST MATERIAL: Large 370 x 235 mm durable metal shelf fits most flat-screen monitors, laptops, and printers, with a maximum support weight of up to 20 kg. Non-slip rubber pads prevent slipping or damage to your work surface. The sleek, modern black design complements any desk while providing extra space under the stand for storage. PACKAGE AND CUSTOMER SERVICE: Suptek 3 Height Adjustable Metal Monitor Stand x 1.