From the manufacturer:
StarBrite Alien Autopsy was mixed by the Ink Master Season 4 Winner and Pro-Team artist, the late Scott Marshall.
This is an opaque, blue-ish grey color ideal for cloudy skies and underwater glows but can be used for all types of different work.
Use with Dark Clay to make a nice stone like effect and Radioactive Fallout to get a smooth olive tone.
Gauge Size
The gauge size is the circumference of the smaller bar in the middle.