Teeter Hang Ups EP-550 Sport Inversion Therapy Table The injection-molded bed design features flex technology Teeter Gravity Boots allow for intensified inversion stretching and workout, while providing comfort and security EZ Stretch Traction handles increase traction and enhance your stretching experience Adjustable foot platform with 2 settings Ez angle tether strap and adjustable pillow. (Includes Inversion Boots.)