Teeter Hang Ups EZ-Up Gravity Boots with Conversion Bar Adapter Kit with Gravity Boots designed for use with the Teeter Hang Ups EP-550, EP-560 and EP-560 Ltd inversion tables, as well as some F-series tables Replaces tables' standard ankle clamps; reduces load on knee and ankle joints CV bar replaces inversion table's assembly; DuPont Hytrel material minimizes pressure points Super-soft 5/8-inch foam liners reduce compression; ratcheting self-locking buckles Each boot weighs 2.5 pounds; removable calf loops; 5-year warranty