Features: 4pcs exercise bands with different colors and tension ranges: #4 Grey 15-35LB, #2 Grey 25-65LB, 1# Grey 35-85LB, Black 50-125LB. Use single band or combine more bands to perform challenging motion strength. Made of natural latex, the flat loop bands are environmentally friendly and fit comfortably around your body. The heavy-duty material is tear-resistant and built to last long despite of repeated stretch. Fully equipped with a door anchor, 2 handles and 2 steel hooks to expand the varieties of your exercise with the resistance bands. The nylon straps are knitted tight to avoid easy breakage and tearing. Comes with a storage bag for convenient portability. The whole pack is compact that will not take up too much space or add extra heavy weight to your backpack, perfect for carrying to the gym, office or travel. Great assistance for pull up,chin-ups, dips to promote muscle training, develop body flexibility and physical mobility, suitable for both men and women.