A 35-to 85-pound resistance belt is a fitness training device. The resistance belt is elastic rubber belt, which can be used for strength training and body shaping with different intensities. 35 to 85 pounds indicates the resistance range of this resistance band, that is, it can provide 35 to 85 pounds of resistance when used. This means that it is suitable for athletes with different strength levels, and suitable resistance strength can be selected according to individual needs and goals. Training with resistance band can enhance muscle strength and improve the stability and balance of the body.