Total Core With Gym Ball (EVA Mat/cushion)

Total Core With Gym Ball(EVA Mat): ITEM NO .:HB8017-1 Color :grey Material :EVA /steel tube/plastics Certificate :CE MOQ:630PCS Carton :1pc/ctns Carton Size:44*17*54.5 cm Qty/20'FCL:630pcs Qty/40'HQ:1520pcs Total core (EVA Cushion) Total core abs starts with a jerking motion ,which causes stain on the neck ,shoulders and lower back .The Total Core eliminates this first jerking motion and then guides you through a smooth, full range supported . The secrect behind total core is the unique ,progressive resistance system that “pushes” you upward with more of a “push” in the beginning of the movement when you need it most and less toward the end .but there’s morel total core turns the crunch “upside down” ,because on the way down ,your pushing against the same unique progressive resistance ,which works your lower back muscles and the “back” of the core.