YELLOW X LIGHT STRENGTH SELECTED --- Our Extra Light Strength Yellow band (1-4 lbs. tension) offers very gentle resistance tension. Ideal for light physical therapy, seniors, chair exercise or rehab.DO IT YOURSELF LATEX FREE BANDS --- Each bulk roll is 25 ft. (8 yards) long by 6 inches wide. Professional grade TPE, powder free, scent free and latex free.30 PAGE RESISTANCE BAND E-BOOK INCLUDED