Multi-function Body Fitness Indoor Product Gym Use Fold-able Exercise Weight Lift Sit up Bench Show 90 degrees lie on your back, abdomen and legs, big bai leg and calf show 90 degrees, the body is in the shape of flying fish du to the leg on mat, this action looks very simple, but need to be able to really get the best training effect, it must be peeled with abdominal contraction force and cause abdominal muscle "compression", action is very short, and do it on the back out of the ground, but the back is still close to the ground.The movement is only abdominal compression, causing the curvature of the spine bone, make the chest ribs close to the pelvis, only make abdominal muscles in the "peak contraction" state, stop, and then control the tight tension of abdominal muscles, slowly make the spine bone gradually stretched down, reduction.Note: The position of the hands has a direct effect on the amount of abdominal contraction pressure.Generally, there are three different placement positions: 1, the two hands naturally straight and flat on the side of the body (easy) 2, the hands do not cross each other in the chest (middle) 3, the two hands on the back of the neck (difficult) 1, accurate method: the two hands gently on the back of the neck ear side, do not cause the neck to compress the force action. 2. Inaccurate method: hold the back neck tightly with both hands and bend it on the back to make the neck column compress inwards with both hands. Product Description Product Name AB Sit Up Bench Brand Name TODO Model Number TD003B-04 Color Black,other color can be customized Logo available MOQ 200PCS Product Size 175*43*85cm Package 1PC/CTN NW/GW 9.55/10.8KGS Packing&Loading

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