Check the listing for details. GI Joe Air Assault FANG Rollbar Engine Cover Replacement 3D Printed Green or Red. Color: Green, Condition: New. Listed at 5.00 USD. **COLOR CHANGING GREEN. READ MORE!** Replacement Rollbar/ Engine Cover for the GI Joe Dreadnok Air Assault or Fang Gyrocopter. This is a direct replacement for a missing/broken piece.For Green/Yellow color: This part is made with 'hypercolor' color changing material that goes from green at room temp to yellow in sun or in heat, very similar to the original parts that really no longer work with the original Air Assaults. For Red color:This part is made with red material that matches the OG color, very similar to the original parts that really no longer work with the original Fangs. This is a custom made 3d piece that is almost identical to the original piece. The bars fit and lock snugly into the main body assembly. Through weeks of trial and error, I've found the design and construction that should hold up to play as well as the original. The rollbars are 3D printed from color changing green/yellow or Red PLA that closely matches the original color. The details match almost exactly with the OG part, but this is 3D printing, so slight imperfections might be present (this material can be fine tuned like sanding or filing before painting). This listing is for the skids only. The FANG and other parts are for illustration/reference purposes only and are not included.