AndaSeat STEALTH II A6D Ergonomic Single Monitor Arm, Silver White, AD-W-A6D-1S-FW, Gas Spring With Adjustable Stiffness. Key features: Durable material made from high quality steel, aluminum and plastic; 360 degree rotating arm; Suitable for screen sizes from 17-32 inches.; Gas-spring Monitor Arm. Available colours/variants: Black, Silver & White.