This is rings with carabiner: https://www.amazon.com/GHB-Gymnastic-Training-RingsAdjustable-Bodyweight/dp/B0B6C4N3XP/ref=sr_1_6?crid=1DPOU44RUV0HD&keywords=gymnastic+rings&qid=1670686859&sprefix=gymnastic+rings%2Caps%2C73&sr=8-6
NOTE that I'm not saying buy these ones. I just found examples. You have to do research. I use rings with carabiners but bought them a while ago so I'm not sure if I'm able to find it on Amazon. I used ones at gyms like yours and they work fine, but if you own it and use it every day, I'd make it a bit easier to use by getting one with a carabiner.