These are the cats meow for doing above ring work and able to get the same feel as being on Rings.
The rollers underneath the rings move in every direction. It could feel like being on ice.
They help develop the muscle control that you need for Rings.
Spotting is easier for the coach when the gymnast is working on a straddle press handstand on the Rolling Rings or Ring parallettes and all the other above Ring skills.
Program director, Philadelphia Boys Gymnastics, Assistant Coach of Men's Gymnastics, Temple University.
"You've made a useful learning tool."