DETAILS: The Utility Bench Connector (WB-UB16-CN) anchors the Utility Bench to the Roller Smith Machine, Power Rack, or Half Rack for increased stability during use The connector allows for quick removal of the Utility Bench to open area for standing exercises Compatible with the Power Rack (WB-PR), Half Rack (WB-HR) and Roller Smith (WB-RS) made after 2011 Also required for use with the Low Row Foot Plate Attachment (WB-LRFPA)