You just described 99% of the Olympic bars I have used.
The quality ones have a cap in the end with their name. Eleiko, Ivanko, Zhang Kong, ABC, Pendelbury etc. Most cost between $500-$1700. Very few are found in health spas. All quality powerlifting and Olympic lifting clubs use them exclusively
Generic made in Asia ones wont. You find them in 99% of commercial gyms/spas etc
The reason being the average commercial gym member will not care for the bar and use it in a power rack or drop it without bumper plates, which funnily enough are also never seen in these premises.
My guess its a cheap ebay bar if it doesnt have a cap in the end with id.
I also have a rare Hampton bar, its 5' and weighs 12.5kg, I've never seen a bar with sleeves this size before, great for the girls