Professional Fitness Gymnastics Rings, Roman Ring 100-120 kg Capacity. Once installed, you can use the rings for such exercises as push-ups, iron cross, dips, pull-ups, and many more. The unique nature of the rings creates a fun, athletic challenge while toning and strengthening your muscles in a coordinated, complementary manner. Easy to install and adjust, the rings are also light enough to bring along while traveling. And you don't have to be an expert to use the rings, as they're easily accessible for beginners but gently progress toward harder skills.