1.Product Name:Resistance Bands Set with Real Book and Carry Bag. 2.Five PCS Fitness Tubes of different levels: Yellow (XLight) : 5 lbs Green (Light) : 10 lbs Red (Medium) : 15 lbs Blue (Heavy) : 20 lbs Black (XHeavy) : 25 lbs Strengthen your different part muscle of the body with this resistance bands ranging from 5 LBS to 75 LBS. 3.N.W./G.W.:1.02Kg/1.05Kg 4.Material:Latex,Steel,Nylon,ABS 5.Exercise Muscle Group,more than 100 kinds of exercise, come with real book instruction: Arm exercise. Shoulders exercise . Back exercise. Biceps exercise. Triceps exercise. Chest exercise. Abdomen exercise . Legs exercise. 6.Great portable workouts for exercise anytime anywhere,limitless workout possibilities. 7.Fulfill your different kinds of fitness exercise,easy to combine and store.