Open-Box, new item 3 Heights Adjustable - According to your need for ergonomic viewing, monitor stands feature 3 adjustable height levels at 3.9, 4.7, and 5.5 inches. Allows you to choose the most ergonomic, healthy and comfortable viewing angle at work, effectively reducing uncomfort in the neck and back. Easily press the button on the leg to adjust between the different height levels. Super Stable & Sturdy - These monitor stand risers come with a 14.5'' x 9.1'' platform, are suitable for most devices including standard 15.6'' laptops. Made of upgraded reinforced metal, these screen risers hold up to 44Lbs(20KG) and are designed with anti-skid rubber pads that ensure stability and protect your laptop and furniture from scratches. Easy to Assemble Computer Stand - Our monitor stands for desk includes 1 platform and 4 adjustable legs. No tools are required for assembly. Simply screw the four legs into the platform. Have your monitor stand fully installed in 1 minute or less so you can f