The machine shown in the pictures is called a multi-functional pull-up and dip station, in English: Power Tower – Pull Up & Dip Station The brand visible on it is PASYOU. It is used for several exercises: Pull-ups: To strengthen back and arm muscles. Dips: To strengthen chest, triceps, and shoulder muscles. Vertical Knee Raises: To train abdominal muscles using arm and back rests. Leg Raises: To strengthen abdominal muscles and hip flexors.