Rock-solid shoulder muscles. You get it by doing pullups. That is why the pull up bar is indispensable on a workout rig. But what if the pull up bar is hanging just a little too high or if you want to hang it at the maximum height, so you can't reach it from the ground? Exactly, then you place the adjustable step on the workout rig.
The adjustable step is small in size, but gives you that extra push to get to the pull up bar. You can easily click it on thanks to the pin on the side. Ultra strong, small in size and indispensable for many.