This product is either discontinued or we cannot get that from suppliers.
ERGOTRON 45-174-300 Neo-Flex Monitor Arm, For up to 24" Monitors, Capacity up to 18 lbs, VESA MIS-D 75/100mm, Easily LIfts, Tilts, Swivels, and Rotates, Flexible arm, Simple set-up, SILVER
Ergotron 45-174-300 provides easy flexibility to your monitor. Economically priced, this arm can be installed in areas, where multiple users need data access. Simply push the side button while lifting the display, then position it where you want it.