These Gravity inversion are also known as Anti Gravity Boots and are for use with inversion bars and tables.
Use these for inversion crunches to take your abdominal exercises to the next level.
Not only will these Gravity Boots help with your Abs but they'll take the weight off your spine.
Gravity Inversion Boots allow you to recover quickly from compression fatigue caused by jogging, aerobic training, stepping, bicycling or weight training. Use them to hang upside down from a chin bar in a doorway , or from a gym bench or tilted wooden board for less extreme traction.