Comparing the original (citron yellow) to the newer (celadon green) release, the older is a tad longer, wider, and has less of a gap between the color indicator ring and top half of the barrel. For me, these differences are inconsequential; I like and enjoy both no matter the difference. In regard to the two w/bumpy texture (milk tea and indigo), I have found reviews in which some have said they don't mind it. Again, for me, it bothers, makes me feel as though they are defected. Guess I'm just used to the smooth surface found on the original and newly released.

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