The wing stow kit is designed to match the ability of the real aircraft to stow its wing. It is designed to be installed in an existing kit to modify the RM V-22 into a stow able configuration. This kit requires some trimming of the body, please down load the wing stow instructions to ensure this is something you can do. The wing stow kit has all the parts necessary to modify the profile configuration and the scale configuration. Wing stow requires an extra channel on your radio equipment.