This mod allows you to have 2 other choices of looks when crafting a ebony helmet on top of the normal version.

The two alternative designs (nightingale hood and Zahkriisos mask) are from vanilla assets and they have all the stats that a regular ebony helmet has (price, armour rating, smithing perks required, heavy armor, Tempering, etc.) they just look different to add some flavor.

I have never been a fan of the normal ebony helmet, there is just something "off" about it with me, but I love the rest of the armor set. The nightingale hood and Zahkriisos mask are used as alternatives, which look superb when combined with the rest of the set and allows one to look cool without compromising the quality of the armor stats.