Maji Sports Full Body Exercise & Stretch Bands4 different levels of resistance exercise bands: These durable TPE bands give you the opportunity to increase your resistance level as you progress or just want to increase the intensity of your workout. The bands come in four different colours: yellow 10 lbs, purple 15 lbs, blue 25 lbs, black 30 lbs. They're a perfect companion for your Pilates, Yoga, Physical Therapy, P90X, CrossFit, etc. and they are also great for general exercises, power weight