MeKay Olympic Exercises Gymnastic Rings Crossfit gymnastic rings (Fitness gym rings) Fitness Gymnastic Rings - Shoulder Strength Training Gym Ring with Flexible Buckles (black) Supports such exercises as push-ups, iron cross, dips, pull-ups, and more Gymnastic rings work muscles in coordination for full training benefits Materials tested to 1000-pound break strength Easy to install and adjust 17-foot straps Advanced design allows additional stability and safety, Ring Material: ABS