Setting up partitions and temporary enclosures is no longer a time consuming affair. The Best Rite Great Divide 6 ft. High Mobile Room Divider Add-On are designed to join starter sets. While starter sets include three wall panels and two end panels, these add-on panel set includes two wall panels. When joined with starter sets, this add-on set attempts to create maximum wall length. Its a great support to the modular wall system that allows you to customize wall length. * Connects two starter sets together * Easily installs and attaches * Approved for commercial use * Dimensions: 64W x 3D x 72H inches