Sit-Stand Spring Arm Desk Mount Computer Workstation Combo System - AMR1ACWSThis Sit Stand Desk Mount System provides an ergonomic monitor and keyboard mounting solution allowing the user to change the way they work throughout the day. The spring arm provides the user with the ability to move the workstation from side to side and up and down. The workstation module provides a keyboard tray with a built in mousepad which can slide into place on either side of the keyboard, enabling mouse operation on the left or right side.