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Description
Can effectively improve muscle strength， physical mobility and flexibility.
Improve athletic performance， to help treating a variety of chronic diseases.
When you pull the elastic band from the beginning，the longer you pull ，the bigger resistance you will get it.
The size of elastic band is in charge of the muscle strength.
 
How to use
Training for 2 to 3 groups， each group of training repeat 8 to 12 times.
Take elastic band fixed on the fixed object of the ground， then form a ring.
Lie on the training mat， keep the knees bending.
Elbow straight and do sit-ups moves upwards， the shoulder blade off the ground
Keep on and continue to do this exercise.
 
Specification
Color:Red Blue Green Black(different color is in different resistance band level and dimensions)
Material:latex.

Package include
 
1XResistance elastic band.