Ring training is a very mobile and versatile way to work your upper body muscles and core. With exercises like pull-ups, pushups, dips, rows and muscle ups the gym rings allow for natural movement of the joints helping with all around stability. The FUEL Pureformance Gymnastics Rings are great choice for exercise lovers and kids alike to use at the gym or anywhere they can safely hang them. Have fun and a great workout at the same time. The FUEL Pureformance Gymnastics Rings are made of textured, PC plastic which is stronger and more durable then ABS plastic gym rings and are capable of supporting up to 200 lbs.