There are a number of points that can get screwed up if you aren’t careful, and to be honest, it’s not entirely clear that the base isn’t as easily secured with pins like the other connection points. To secure the base you have to use a small Allen wrench (included) and small inset screws, (also included), but it’s nowhere near as easy as the pins and i have a feeling the screws won’t stand up to repeated removal and assembly without stripping or damage making them useless. Once assembled though, the bars are pretty stable. I did purchase some silicone tape to wrap the top bar in both pull up section and dip bars section, and it made a big difference. All in all, I’m happy so far, I’ve been assembling and taking down the bars for every workout, so they don’t get rusted out sitting outdoors and with the right accessories, they are quite versatile, i purchased exercise rings (gymnastics rings) arm straps for knee raises and a pulley system to be able to do cable exercises like at the gym… for what i paid, I’ve been getting quite a bit of functionality out of these bars… i’ll update as i continue to use them