Product DescriptionMatters needing attention:Sit-ups pay attention to the method and exercise, not too fast, to prevent injury to the back muscles.When doing sit-ups, be sure to relax and don't strain your body.Activity is moderate, do not just seek quantity and do not pay attention to the state of the body.Action to do slowly, the slower the more tired the more effective.The head does not need to rest on the supine board. Some people lie on the supine board with their whole body.Product Specifications:Material: Foam, leather, high quality steelColor: BlackBackplane size: 75.5 × 30 × 5 cm, 29.72 × 11.81 × 1.96 inchSit Board Size: 30 × 30 × 5 cm, 11.81 × 11.81 × 1.96 inchLoad-Bearing: 250 kg, 550 lbsWeight: 11 kg, 24 lbsFunction: Healthy fitness healthy lifeExercise Place: Chest back biceps triceps leg abdomen waistPackaging Includes:1 × Abdominal muscle plate
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