3D Ink (PLA) is the perfect material for highly detailed prints and is the goto material for most users. 3D Ink is made from PLA, a bio-degradable plastic which is safe for the environment because it can be made from renewable resources such as corn starch. PLA plastic has a faint honey-like odor (if any) and comes in a wide selection of colors. New and improved formula. Consistent extrusions & better bonding.