Kamen Rider Kuuga/クウガ Ultimate Form Helmet
A helmet to print for your cosplay...or to gift to your life's greatest blunder, if you've got one ;)
This helmet is intended for cosplay, and is scaled to be wearable for somebody about 5 feet 6 inches (~168 cm) tall. You're likely going to need to scale it up if you're bigger than that (the mask will be tightest from the tip of your nose to the back of your head, so scale based on that measurement). If you just want a miniature version of the helmet, there's official merch line called Mask Collection (マスコレ) that I'd suggest checking out instead of printing this (they've released a new Kuuga Ultimate for it as of September 2017).
Feel free to print via 3dhubs/university printing services/etc. Print mass should be around 200 grams.