This is a set of pan bars for the GITZO Gitzo Series 3 head, model G1372. * Long: Model D1372.11, total length including the threaded part is 21cm, 18cm after attachment. * Short: Model D1372.18, total length including the threaded part is 9cm, 5.5cm after attachment. These pan bars were previously used on a head and can be used without any problems, tightening securely. * The short pan bar shows some blackening. Please check the photos for details. Please consider purchasing.