Model Number:Ab Rollers Type:Double-Wheeled Function:Comprehensive Fitness Exercise Application:"6-Second Abdominal Trainer Description: How to practice eight pack abs? Sexy vest line? Stimulate the same muscle with different movements Can exercise the front deltoid muscle, the middle deltoid muscle, the upper arm biceps, the triceps, the upper chest muscles, the middle muscles, the latissimus dorsi, the abdominal muscles Comfortable grip, odor-resistant non-slip foam handle, multi-point hub design, with thick steel pipe, the actual load capacity can reach 200kg High-quality PVC outer ring, no noise, no more damage to the floor, quieter and more comfortable, thick steel pipe, safe and stable, super load-bearing EVA tread wear-resistant anti-slip, soft PVC sports mute, quiet exercise, will not disturb others Imitation car super wide wheelbase, not all abdominal muscles are so stable Easy to disassemble, easy to carry and easy to carry, work at home, you can exercise Specifications: Wear-resistant anti-slip / anti-pressure safety / quiet and comfortable Soft and comfortable handle, comfortable sponge grip, black non-slip foam Bold anti-pressure steel pipe, steel pipe is stronger and safer Kneeling Place your knees on the mattress, hold the hand of the belly wheel with both hands, push the belly wheel forward to the level of the body, then return to the ground, repeat operation Level 1: Each group is stretched 7 times, and one group is 10 days in a row. Level 2: Each group is stretched 7 times for one group, and two groups are consecutive for 20 days. Standing posture Stand your feet together on the level ground, hold the hand of the belly wheel with both hands, push the belly wheel forward to the level of the body, then recycle the homing, repeat operation Level 3: Each push and pull god 12 times as a group, three groups a day