Make sure this fits by entering your model number. 【Safe And Durable Material】kingroad Resistance bands are made from of natural material,which is strong tear-resistant, stretchy, durable and can withstand extreme tensile force. The greater the pull value, the greater the resistance you will feel. 【Specification】 Light Grey(8-15 lbs), Best for speed barbell training and shoulder mobility. Medium Grey(15-35 lbs), Beginning bands for resistance and barbell band training or just a little boost for pull up assist. Grey (25-65 lbs), Medium tension for resistance training and pull up assist. Dark Grey(35-85 lbs), Ideal for pull up assist, High tension for resistance and advanced banded barbell training. Black(50-125 lbs), Ideal for pull up assist.