The horizontal wave is the dominant fitness equipment in outdoor gyms, as it is suitable for dynamic hanging and pull-ups in different grips and grip widths. The hang is a very simple exercise, but there are many variations of it, with different levels of difficulty, which can be used to move the entire musculature of the body. The hang, as a basic free weight exercise, can be performed on a simple bar, but the horizontal wave gives more flexibility in combining different elements of the workout, making it more fun and colorful.