Elastic Fitness Swing Stick 160 cmFor the Deep Muscles: Fitness Swing Stick Red Black Visible muscles aren't everything: the deeper lying muscles and connective tissue are also important for a toned body. To strengthen both, you can use the elastic fitness bar from Gorilla Sports. Exercises with the swing stick (also known as the swinging stick) are also an ideal counterbalance to sitting in everyday life: They help to relieve tension in the upper body and shoulder area and prevent