Which gymnastics apparatus involves two parallel rings, and exercises that require stillness of the body?

The gymnastics apparatus that involves two parallel rings and requires exercises focusing on the stillness of the body is known as the still rings. In this apparatus, gymnasts perform various strength and balance routines while suspended from the rings. Key elements of still rings include their emphasis on body control, stability, and the ability to hold static positions, such as the planche or the iron cross, which showcase significant upper body strength and core stability. The still rings are a fundamental part of artistic gymnastics, particularly in men's competitions, and are known for demonstrating the gymnast's strength and precision.