Ergotron LX Arm, Extension and Collar Kit (White)

LX Dual Stacking Arm Tall Pole (matte Black)

Ergotron Part# 45-509-224

Monitor Mounts and Stands – Desk Mount - Monitor - Display - TV - 2 Displays Supported - 44 lb Maximum Load Capacity - 40" Maximum Screen Size Supported - Stackable - Flexible - Rotate - Multipurpose - Extendable - 75° Tilt ...

LX Dual Stacking Arm Tall Pole Bright White Gray Accents

Ergotron Part# 45-509-216

Monitor Mounts and Stands – LX - Desk Mount - Monitor - 2 Displays Supported - 40 lb Maximum Load Capacity - 40" Maximum Screen Size Supported - White - 75 x 75 Mounting Pattern - 100 x 100 Mounting Pattern - 7.09" Height - 17. ...