MX 4021 desktop flexi- monitor desktop mount is built-in durable Gas-strut or gas spring cylinder to enable to move your screen any directions and height at your wish. Allow you to experiencing the best of ecological interface design for the best viewing position. Added the gravity spring pivot joint design offered effortless titling position to eliminate gray viewing angle. MX 4021 desktop mount can be installed at the table edge or grommet installation anywhere of your worktable. It is a perfect office accessory that enable to swivel horizontally ±180° for sharing information with your nearby colleagues or rotate 90° for showing upside down images. MX 4021 monitor arm is constructed in aluminum alloy material with plastic appearance. Nice looking integrated cable management designed provides clean and clutter-free look.