【Upper Limb Rehabilitation Training Skateboard】: For rehabilitation training for stroke hemiplegia, joint contractures, osteoporosis, shoulder subluxation, and shoulder-hand syndrome; strengthens shoulder muscles and improves joint mobility. 【Dual Front and Back Fixation】: Highly elastic bands with a degree of relaxation prevent tightening of the arms; dual adhesive fasteners secure the wrists and forearms of the upper limbs for convenient training. 【Mobility】: Four dual noise-reducing wheels on the bottom provide 360° flexible rotation with no lag, a soft sound, and wear resistance, making it suitable for a variety of tables. 【High-Quality Material】: Made of high-quality PU leather, it is soft, wear-resistant, breathable, and comfortable. It provides excellent shock absorption and prevents injury during training. 【Instructions】: Secure your hands and then make a clockwise circle from the outside in, starting with 36 circles, then 36 circles counterclockwise, and repeat.