With jerking motion, which causes stain on the neck, shoulders and lower back
Eliminates first jerking motion and then guides you through smooth, full range motion that far exceeds the range of a typical crunch while you are comfortably seated and properly supported
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
Total Core(B)
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Basic Info.
- Model No.: EF-7825
- Place of Origin: Zhejiang
- Min.Order: 1500 Set/Sets
- Means of Transport: bysea/air
Supply Capacity
- Packing:gift box/carton
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