Total Core Product Features: 1. 360 degree workout that slims sculpts and defines your abdominal muscles and oblique muscles 2. Unique design relief you of the pain and strain in doing traditional crunches and sit-ups Total Core's Secret 1. Unique, progressive resistance system pushes you upward with more of a push in the beginningwhen you need it most and less toward the end. 2. Crunch upside down works your lower back muscles and the back of the core Technical Specification: Main material: Gym quality steel Weight capacity: 150kgs,330LBS Accessories: Free balance ball, pump &dvd colors: Black and silver Assembly size: L75*W44*H50cm Conveyance: Carton Dimension: L54*W45*H18cm/0.04374cbm N.W. /G.W. 6.8kg/7.9kg Container Load Quantity: 740 sets/20'FCL 1,500sets/40'FCL 1,700sets/40'HQ other products