Inversion made comfortable with IRONMAN Gravity 5000 Highest Weight Capacity Inversion Table. The IRONMAN Gravity 5000 features patent pending AIRSFOT Ankle Holders for unmatched comfort. NO PINCH OR PAIN on your ankles while inverting. With our easy reach “Palm Activated” SURELOCK™ adjustable ratchet ankle locking system, you can invert full 180 degree without any worries. In addition, the removable lumbar pillow provides extra lower back support while inverting. With the comfortable 2.5” extra thick soft foam backrest, IRONMAN Gravity 5000 will provide you the excellent back comfort you need at a reasonable price. Gender: unisex. Age Group: adult.