The “L” shaped bracket holding the back ti the base bends as soon as you lean back.  I had to weld up a new one from steel scrap I had laying around but if you cant do that, DONT buy it because it will bend/break as soon as an adult sits in it. You dont want a jagged piece of steel lodged in someones spine. It also smells like gasoline, lord knows thats not good for you & I cant imagine anyone is testing these things for toxins. Looks neat, great price, but its a real safety hazard.