This lightsaber, which emitted a blue beam, was the property of Tai. He was a human of the male variety, blessed with the Force-sensitive ability, and became a member of the Jedi Order while being mentored under the guidance of the Jedi Master Luke Skywalker. Ben Solo at one point held this lightsaber in conjunction with his own, ultimately employing it to deliver a fatal blow to Ren, a follower of the dark-side.
The initial appearance of Tai's lightsaber was within the pages of the Star Wars: The Rise of Kylo Ren comic mini-series, which was published by Marvel Comics. The comic was brought to life by the writer Charles Soule and the artist Will Sliney.