The best-known aerial sports equipment is the aerial hoop (a round metal ring attached to the ceiling, not unlike the hula-hoop), the aerial silk/vertical cloth (two silky lengths of fabric hanging from the ceiling of a room), and the aerial yoga cloth (a special yoga cloth attached to the ceiling at both ends, which resembles a swing when assembled). With Aerial Yoga, you practice yoga with the help of a cloth hanging from the ceiling. Strength, flexibility and endurance can be trained with all 3 aerial fitness devices.