eSun Luminous Rainbow is a modification of standard PLA. Luminous Rainbow has the same easy printing characteristics as PLA and is added with a gorgeous glowing appearance when in the dark.
 
PLA is a biological material refined from corn grains and is naturally degradable, when compared to ABS, PLA does not require a closed chamber, has low shrinkage, no warping, no cracking, and can print large models without irritating odours during printing.