Device for performing isometric, isotonic, postural development and rehabilitation exercises, characterized in that it comprises an inextensible textile material band (1) with a central area (2) and two ends such that at each end (3) the band made of textile material comprises a plurality of housings (4) distributed longitudinally at each end, each housing (4) being configured to insert a hand, a forearm, an ankle or a foot. (Machine-translation by Google Translate, not legally binding)