This is absolutely amazing. I reached out to the seller and asked if they could alter the file to allow for a separate vocoder and to cut out the teeth, tubes, traps and tears (stripes on helmet) to allow for easier post processing and they did this within hours. Most may not think this is a big deal, but once you attempt to cut these parts out after printing, you'll realize how monumental this is. This is the only helmet file you'll find that comes with this option. Absolutely incredible customer service. It would be a grave mistake to not buy all my 3D print files from Akira-Yuming.