Matching Pairs GEL40Online version ......... by Tea Cher 1 Swiss ball 2 Hula hoop 3 Treadmill 4 Barbell 5 Yoga mat 6 Dumbbell A large, circular ring used for a rhythmic exercise activity. A thick, cushioned mat used for yoga practice and other floor exercises. Also known as a fitness ball, exercise ball, or physio ball. A motorized machine with a moving belt that allows you to walk, jog, or run in place. A free weight consisting of a handle with a weight at each end. A long bar with weights attached to each end, typically used for weightlifting exercises.