Atdec AWMS-2-D13 Dual Dynamic Monitor Arms on 135mm Post. Max Load: 8kg, Bolt-Through Desk Fixing, VESA up to 100x100. Black.This desk mount has two dynamic arms attached to a small post. Each arm has smooth fingertip horizontal and vertical movement, plus tilt, pan, and rotation of monitors landscape to portrait. The monitor arms are spring assisted and can be installed in any of the four post channels, and additional monitor arms can be added later. The spring assisted arm design provides excellent ergonomic support and display adjustment from a seated position. Perfect