As for Trampolines Ultrafit, this scale is robust. We pass the canes in the right turning left into the holes of the steps. When we arrive at the drilled hole, are fixed steps by a screw and a bolt (obviously provided). Place the bolt is provided in the march, from below, so she can really move. After no more than hang across the entrance to the trampoline. And it's much more stable than small stool we used before !!!!!!! The only thing that could improve Ultrafit is the width of the steps, they are 7 cm wide, 10 cm would be even better.