I will tell you from the beginning that there are not too many options in the market. I thought I would receive a low quality product, the market is invaded by Chinese products, but I was pleasantly surprised to find a product made in the EU (Poland) of very very good quality, durable for a lifetime I could say. The rod is solid steel, heavy, chromed, straight and without imperfections. The base is made of thick steel plate, 4mm, heavy, powder coated in an electrostatic field. The rod is tightened with a nut and a washer, I seriously tightened it with a 14mm socket wrench. The rod is perpendicular to the base. The clamps and supports it comes with are of the best quality and durable. The set is intended for biochemistry, but it can also be easily used in physics. The advantage of this set is that it allows the supported object/container to be in the center of gravity of the entire system, the rod being moved towards the edge of the support.

As mentioned in another comment, the options for purchasing this support are limited and I chose to purchase it here as it is a European company, although I was not familiar with it. I was pleasantly surprised! Placing the order was simple and delivery was quick and hassle-free, despite living in a remote area where deliveries tend to be complicated. The product is easy to assemble and very robust, more than I expected. Although I don't put it to conventional use, as I use it as a support for flammability tests on fabric dolls (I treat it quite badly), after being exposed to several flames, it remains in perfect condition. I'm sure it will last me a long time.