Octopus Black Lining & Shading Tattoo Ink 5-oz Bottle Don't worry, this is not real "Octopus" Ink from the sea. It is just the name of this brand of Tattoo Ink. The ink is smooth and not too thick. Goes in Black and stays BLACK. It is not very messy. Comes in a nice 5oz bottle with an easy to open and close nozzle.