Extremely sturdy, height adjustment stand with internal screw.

I give a low rating because it ONLY works for bicycles that have a slot for a stand with a fixed plate and hole. If the stand on the frame is secured with a metal bracket and has a small gap, it basically cannot fit. The reason is that it requires a screw with American thread (UNC-UNF) and you will have a VERY hard time finding one longer than the screw in the package.