Skybuilders' Wain

Skybuilders' Wain is miscellany used in the Ishgardian Restoration.

Source
Skybuilders' Wains can be crafted by carpenters as a level 40 recipe with the following materials:
 * x4
 * x4
 * x2
 * x4
 * x2

Uses
Skybuilders' Wains are exchanged for in custom deliveries to Potkin in The Firmament.