Use the enhanced Kontour™ KRA221 K1C Expansion Arm Kit to add an additional K1C monitor arm to an existing K1C installation. This provides a fast and easy means of upgrading from an existing single-arm K1C120 to a dual-arm K1C220 configuration. The KRA221 can be used to add a 3rd and/or 4th arm to a center-of-table multi-workstation configuration, using the KRA226 grommet plate accessory.