The mini band set includes the strength "strong." The mini bands are extremely versatile, lightweight, and portable. The mini band loops fit in your gym bag and can be taken anywhere. Use the mini bands at home, in the gym, on the sports field, while traveling, or in the box. Perfect for warming up the thigh, core, and shoulder girdle muscles. Light, effective, and portable. Due to their small size, the mini bands are extremely versatile and can be used anywhere. Dimensions of the mini band loops: approximately 22 cm x 5 cm.