A device is provided for the management of multiple lines attached to a bar, of the type used in power kites for kiteboarding. The device is formed of an elongate body having a shaft region, a spool region adjacent the shaft region and distal thereto, and a line retaining region distal to the spool region. The shaft region has a hollow body having a longitudinal groove running from a proximal opening to a distal end point, and a bar retaining means for retaining a bar against rotational or axial movement. The spool region has a spool shaft defined by proximal and distal containment means for retaining spooled lines wound about the spool shaft. A line retaining region has a means for separately retaining one or more lines of a plurality of lines.