An aerial hoop, lyra hoop - or air ring in German - is a metal
ring that can be attached to one or two suspension points, even at low
heights, and on which you can perform aerial acrobatics.
Known from the circus, aerial hoops are an ideal piece of gymnastics
equipment to train the entire body and every muscle in the body. Besides
the trapeze and the vertical scarf, the aerial hoop is the
most popular gymnastics equipment which can also be
hung up at home.