Bests & Worsts Reviews from Amazon

We just have been to ER because of the injury caused by this product. It is supposed to be locked, but it got released during work and it collapsed to my wife, and my toe got pinched. Fortunately, her brain was not damaged, but my wife is experiencing a heavy concussion, and it's after symptoms. Never ever ever ever buy this. If you buy this, you are risking your family's life. I am planning to consult a legal service for this issue.