Infinitely height-adjustable railing can be used with exercise bands, tubing or bungee cords to perform upper and lower extremity exercises. The Complete Set includes 4' rail with one slider, the overhead section with one slide attachment, and three 3-foot long exercise cables with handles in red, green and blue resistance levels. Mounting hardware not included with these packages. Available in two options as well as an overhead section to provide you with the perfect combination/option that you are looking for.