Check the listing for details. Sutekus Anti Gravity Inversion Boots - For Ab Crunch, Abdominal Sit Up, Hooks.... Condition: New. Listed at 58.88 USD. Brand New Sutekus Anti Gravity Inversion Boots - For Ab Crunch, Abdominal Sit Up, Hooks Bar Therapy, Core Gym Fitness Exerciser Manufacturer model: Sutekus Anti Gravity Inversion Boots are designed to counteract the downward pull of gravity.Chrome-plated hook, supporting weight up to 300lbs. With quick and easy strap locking system.Extremely comfortable 1.2" thick foam padding to secure. If the boots are not tight enough for you, we suggest to wear thick socks or use a towel for extra padding for secure.Hang upside down with Sutekus boots to help reduce back pain, muscle tightness and spasms, relieve fatigue from muscle compression due to cycling, jogging and other exercises.Attaches to almost any chin-up bars. Make sure boot hooks are securely fastened to bar before exercise. Description Shipping and Handling Please allow 5-7 business days for the package to arrive, regardless of buyer location within the US. We will provide an online tracking number to you once the item has been shipped. It may take a few business days for our automated system to process the tracking number onto eBay. However, this will not affect the shipping times. Return Policy All our products are brand new and sealed. All items qualify for returns within 30 days of receipt. Feedback We take our reputation seriously. If you have any questions or concerns, please contact us and we will respond back to your message within 24 hours.