AndaSeat Stealth Pro II A9 Ergonomic Monitor Arm, 17-42 Inch, 2-15kg, Quick Release VESA 75x75mm And 100x100mm, 360 Degree Rotation, Black AD-W-A9-1S-BB. Key features: Gas-Spring Monitor Arm With Adjustable Stiffness; Supports 17-42 Inch Screens, 2-15kg Single Monitor; Quick Release VESA Plate 75x75mm And 100x100mm; 360 Degree Rotation, Tilt +90 to -45, Bend +/-75. Available colours/variants: Black; Black & Titanium.