... , big handle bar,adjustable head restback. DELUXE TOTAL CORE WITH FOUR SPRINGS AND BIG HANDLEBAR, HEAD RESTBACKKey Specification-Materials: iron, PP ... .2.Easy to use,no matter what fitness level.3.Four or Six iron springs to support your body.4.When ... *54cmweight: 6.5kgs/7.5kgs Deluxe Total core/ AD trainer/four spring/