This is a 3d model, 1:1 ratio, wearable replica of the Deathstroke helmet worn on by Deathstroke (AKA Slade Wilson). This helmet was modeled after the Prime 1 Studio's Deathstroke statue. This file is available for purchase on my Etsy Account.
https://www.etsy.com/listing/745430378/deathstroke-helmet-mask-arrow-titans?ref=shop_home_active_8