Ergotron - LX Desk Monitor Arm in Black, Monitor Mount with patented Constant Force Technology, for displays up to 34", 3.2-11.3 kg with VESA-Standard : Amazon.co.uk: Electronics & Photo
Ergotron – NX Single Monitor Arm, VESA Desk Mount – for Monitors Up to 34 Inches, 0 to 8 kg – Matte Black : Amazon.co.uk: Computers & Accessories
Ergotron HX - Mounting kit (handle, articulating arm, desk clamp mount, grommet mount, 2 pivots, mounting hardware, extension part, hinge bow) - for 2 monitors - matte black - screen size: up to 32" | Stone Group
The 3 Best Monitor Arms of 2024 | Reviews by Wirecutter