This Pi Cheolin otter lightstick cover was made to fit the caratbong version 3! It has some clear rubber spirals on the inside of the cover to allow a better hold to the light stick. (These spirals are not visible when its on the lightstick! They're purely for structure :D )
I'm not 100% certain that this will fit other lightsticks, but I can always look into it for you.
If you have any additional questions, feel free to message me.
