those are like snowlerblades.
I'm 6'3, the shortest skis that I ski on are a 185. I suggest nothing shorter than a 180 for you.
there's a lot that factors into it, such as stiffness, what the ski is underfoot, how tall you are and how much you weigh, and what you are using them for, but a 143 is WAY too short for anyone that's taller than like 5 foot even