Basically, the Leg Length slider allows you to change the position of your Sim’s butt relative to the other parts of their body. By dragging the butt up or down, you essentially change the length of your Sim’s legs. It looks really goofy when sped up in the preview .gif but if you were to combine this slider mod with one of the various height sliders out there, you can really manipulate the proportions of your sim. It’s a perfect slider mod for tall & leggy sims!