“The IronMan Gravity 4000 inversion table is built with a durable tubular steel frame with a scratch resistant powder coated finish. 2 ½ inches thick Memory-foam vinyl covered backrest for a comfortable head and back. It has tough rubber non-skid floor stabilizers that provide stability when inverting. Extra-long safety handles provide easy return to the upright position and vinyl safety covers are added for safety. The ergonomically molded ankle holders provide comfort and security. When not in use, the Gravity 4000 can be folded.
• Helps reduce back stress by relieving pressure on vertebrae discs and ligament• Can reduce fatigue, stress and relaxes the overall body• Can promote stimulation of blood circulation to relieve stiff muscles• Helps reduce the effect of aging due to gravity• Increases body flexibility to improve athletic performance• Helps relieve lower back aches due to sitting or standing.”http://www.amazedfitness.com/fitness-gear-and-program-reviews/ironman-gravity-4000-inversion-table-fitness-gear/