Our Resistance band is made from Tubes containing 100% Natural Latex. These 4pcs stackable tube bands have different resistance levels: Yellow = 3-7 kg Red = 7-15 kg Black = 15-30 kg Purple = 30-45 kg Green = 40-60 kg Blue = 60-75 Kg. They can be used alone or stacked in any permutation and combination. Whatever your exercise goal is whether you're a beginner or bodybuilder we've got your back! FULL BODY EXERCISE WITH OUR RESISTANCE BAND Complete a full body workout with this bands. Do Chest Shoulder Abdominal Legs and Arms workout followed with mobility drills. Best for Stretching & Toning is well. Get a complete world-class gym workout at the comfort of your home! Perform over 200 exercises with our workout bands. TAKE YOUR HOME WORKOUT TO THE NEXT LEVEL Whether you are a beginner or expert resistance Tubes have a place in your home gym. Resistance Tubes work your muscles as weights do your muscles contract to generate force to stabilize and control the desired resistance.