I use 6 of these on the race simulator and they are quite strong but I would say the vertical support is a bit weak. I bought them mainly because of the color. They work well and I've had no problems (even with a full "driver" load totaling about 400 pounds), but I wouldn't consider them "industrial" duties by any means. Definitely made of Chinese alloy. It's better if you use them on steel cart with expensive tools/heavy goods or anything used near customers/clients especially if you only rely on 4. I definitely wouldn't want any of those spirit givers if someone's kid was going to climb the hanger.