deluxe total core, 4 springs, single head restback,without handle bar. Key Specification-Materials: iron, PP, PVC,foam-easy to assamble- ... ,no matter what fitness level.3.Four or Six iron springs to support your body.4.When lying down, ... loading weight:120kg8.With comfortable seated postion.9.Total core will help you to get fit with ease and ... : 6.1KGS/6.5KGS Deluxe abdominal exerciser/total core