IRONMAN Gravity 1000 with Heat Therapy Cushion Ironman Gravity 1000 Inversion Table with Infrared Heat Therapy Cushion System delivers the benefits of heat and inversion therapy at the same time Heat therapy cushion fits inversion platform with an adjustable nylon strap Heat therapy includes remote control and master control box with LED readout and timer Gravity 1000 inverts to a full 180 degrees with spring loaded ankle locking system and contoured ankle holders