WIRE HARNESS

A harness body includes a first routed portion routed to an other end portion of a first arm member on a first coupling target side, a second routed portion routed on the first coupling target side with respect to the first routed portion, and a third routed portion guided toward a fixed portion on a second coupling target side by a harness guide tool at the other end portion of the first arm member and having a fixing portion fixed to the fixed portion, a link mechanism includes a first rotation shaft, a second rotation shaft, and a third rotation shaft, and the second routed portion is wound around the harness guide tool and the third routed portion with slack.