Yaesport Upgraded Version Heavy Yoga Bungee Rope Resistance Belt Bungee Workout Gravity Pro Training Tool Equipment for Home Gym Yoga

The bungee cord on this is SO strong that you will definitely need to weigh over 120lbs to get it to stretch at all. And the hardware that came with it is made for drilling into concrete, so if you're putting it in a stud, be prepared to buy your own screws, etc. I was buying it for my 55lb special needs, very bouncy, son and have had to make some adjustments to make it work for him. But the product is very stable and worth the cost.