KYLINFIT Anti Gravity Inversion Boots Abdominal Crunch Sit Up Bar Hook Therapy Core Gym Fitness Trainer

Material: use of heavy metal hook, 2mm high quality steel plate. Can hold up to 300 ml. Safe and reliable. Integrated 3cm foam lining Protect your calf from contact with the external steel plate. Also acts as a non-slip. Benefits: Handstand training stretches your back and stretches your spine. Relieves back pain, muscle cramps. Relieves discomfort caused by spine compression. Train core muscles Applicable: U-shaped hook has an opening of 2 inches and a radius of 1.5 inches (rod size). The 1.5 inch bar works best with this product. Too big or too small is a risk when training. Design: double security lock design. Don't worry about the lock loosening during exercise. Highly reliable. At the same time, there is a 2 m long safety rope, which can be trained independently to ensure safety. Note: This product is fixed size and cannot be adjusted in size. Applicable ankle dimensions: 22-35 cm (from the bottom of the soleus muscle to the middle of the ankle segment). An oversized or undersize will bring you a bad product experience.