The fitness band in the park is called elastic belt.

Elastic belt is made of natural latex, which can effectively improve muscle strength, physical activity and flexibility, effectively improve sports performance, and help to treat various chronic diseases of human body. Elastic belt is a portable, easy to use and very effective small physical training tool. Also called elastic ring. /kloc-More than 0/00 years ago, elastic belt's resistance training tools were used in the field of fitness, mainly for male strength training and female self-cultivation programs. Widely used in the field of rehabilitation training. Elastic belt is often used as a fitness training tool at home or on business trips. It can cooperate with the rhythm of music and become an aerobic training that can quickly cultivate self-cultivation, strengthen cardiopulmonary function and improve posture. If the trainer refers to the professional elastic belt training video, the training effect will be more significant.