The Health Gear HGI5300 has a heat and vibration pad that rotates for total back massage. It incorporates a thick comfortable structured foam for maximum comfort and support. FEATURES: Comfortable adjustable headrest Built in & removable heat & vibration massage pad Full length padded foam handlebars Side inversion pin for 20,40,60 & 90 degree inversion settings Dual locking safety frame Pull pin height adjustment knob for users 5’1” to 6’6” Four stage ankle security system INCLUDES: Patented safety ankle straps Long front extension arm for easy entry and exit Comfortable rear foam rollers Front molded ankle cups Reinforced front foot rest plate 300 lb. weight capacity Tested & approved by underwriters laboratories (UL approved) FDA registered class 1 medical device Back wheels for easy transport Folds for easy transport and storage