Solid Steel Construction - provides excellent support and durability for two monitor screens (up to 38??? in size and 22 lbs in weight) with VESA 75x75mm and 100x100mm mounting holes. Fully Adjustable - monitor arms offer -15?? to +15?? tilt, 180?? swivel, and 360?? rotation for optimal viewing angles. Monitors can be placed in portrait or landscape orientation, and the arm height is adjustable along the center pole. Double Monitor Force - lets you win back valuable desk space and increase work efficiency by getting two monitors off of your desk and raised to a comfortable viewing height that relieves tension on the neck, back, and shoulders. Sturdy C-Clamp - ensures solid stability for both regular and ultra-wide monitors. Maximum recommended desk thickness is 3.5???, and grommet mounting is included to accommodate a variety of workstation setups. We've Got You Covered with a sturdy steel design backed with a 3 Year Manufacturer Warranty and friendly tech support to help with any questions or concerns.