Product details:

• Installs from Top Side: installs entirely from above the desk surface
• Built in Spring Tension Gauge: for perfect weight adjustments
• Detachable VESA Plate Design: enables easy installation
• Smooth Arm Insertion: ensures easy installation
• Spring Assisted Mechanism: allows to easily move up and down
• Two Mounting Options: both desk clamp and grommet are included

Specifications:

Surface Finish: Powder Coating Color: Matte Black Dimensions: 1066x129x697mm (42"x5.1"x27.4") Fit Screen Size: 17" 32" Fit Curved Monitor: Yes Screen Quantity: 2 Weight Capacity (per screen): 0~8kg (0lbs~17.6lbs) VESA Compatible: 100x100,75x75 Tilt Range: +90 9090° Swivel Range: +90 9090° Screen Rotation: +90 9090° Arm Full Extension: 514mm (20.2") Pole Height: 362mm (14.3") Installation: Grommet, Clamp Suggested Desktop Thickness: ClampClamp：10~50mm Grommet Grommet：10~50mm (Clamp Clamp：0.39"~2" Grommet Grommet：0.39"~2")

Warranty: 1 year.