Elastic band is made of natural latex. It can effectively improve muscle strength, physical activity and flexibility, effectively improve sports performance, and help treat many chronic diseases of the human body.

The resistance of the elastic band is calculated in kilograms according to its percentage elongation at relative rest. During the elastic band training, we can evaluate the resistance of the training according to the change of the length, and we can also select the appropriate length of the elastic band according to our own situation.