Desktop Lifting Monitor Stand Bracket, Dual Screen Desk Base, Double Screen Table Clip, Four Screen Desk Base, Four Screen Table Clip1. Multi dimensional rotation, 180 degree flexible steering, left and right rotation screen, adjustable pitch 2. Multiple combinations, horizontal screen + horizontal screen horizontal screen + vertical screen vertical screen + vertical screen two way inside and outside 3. Suitable for monitors of 10 27 inches 4. Applicable hole distance: 50x50 75x75 100x100mm 5. Weight bearing range: within 9. 9 kg of a single arm Specification: Package Weight One