“A personal embroidered headband. Thirty-two thread count, easy tie capabilities.”
The headband is a headgear given to Kai by Cyrus Borg shortly before the ghost invasion.
History[]
Curseworld, Part I[]
Cyrus Borg gave this to Kai, explaining he was busy making the other vehicles and all he could make is a headband. Kai wore it on his head, thinking it was useless. Later, to escape one of Soul Archer's arrows, Kai used it to zip-line down a cable.
Trivia[]

Kai's 2021 hair
- In The Island sets Kai was given a new hair piece with a red headband molded onto it, though this does not have the same appearance as his hair in "Curseworld, Part I," because it is a variation of his LEGO Ninjago Movie hair.