2 HEIGHTS ADJUSTABLE: The legs of this dual montior stand are hollow square construction which is flexible can be placed horizontally or vertically, so you can choose the level you want to raise your monitor upADD EXTRA SPACE TO YOUR DESK: Perfect solution for small desk space, gives you extra space to store mouse and keyboard underneath so you have more room for laptop or paperwork; clear up the clutters on desktopNO ASSEMBLY REQUIRED: Out-of-the-box, just place the shelf on the bracket and secure it with double sides adhesive tape(included in the package); it also come with non-slip pads protect your desktop from scratchingERGONOMIC DESIGN: Elevating your monitor to an ergonomic height is important for finding your most comfortable sitting posture, which can help reduce eye strain, neck stiffness, and back pain during working timeSTURDY & STRONG BEARING CAPACITY: This long dual monitor stand made of high quality rubber wood, smooth and thick workmanship,unique construction makes it have strong bearing capacity(support up to 220LBS)