... : iron, PP, PVC,foam-easy to assamble-Designed for efficient sit-ups, abdominal work and upper body workouts- ... Material compostion:steel,plastic or foam.2.Easy to use,no matter what fitness level.3.Four iron ... When lying down,it will be back automatically.5.Use your strength of belly and waist to let ... Container Loading:750pcs/20'FT 1600pcs/40'HQ 2012 New design hot sale Abdominal Training Equipment