Giantex Mobile Stand up Desk Adjustable, Rolling Standing Laptop Cart, 27.5"D x 22"W x 49.5"H[Work in a Healthier Way]: Compared to the sedentary work style, this mobile standing desk allows a sit stand alternation. It is up to you whether to stand or sit during work. As a result, you will say goodbye to neck pain, backache and obesity, leading to a healthier lifestyle. [3 Individual Platforms]: This rolling laptop cart equips 3 functional shelves. The height of each shelf can be controlled separately. The upper shelf has an adjustable height