5 Level Resistance(3-20pounds): You will get a set of resistance bands including five colors, different colors represent different stretching forces. Each stretch strength (color) is suitable for different exercise levels and different exercise purposes. And unisex. | Resistance Levels: Gym resistance bands come in 5 different resistance levels: Yellow Band (X-Light, 0.25mm), Red Band (Light, 0.3mm), Green Band (medium, 0.35mm), Blue Band (heavy, 0.4mm), Gray Band (X-heavy, 0.5mm).Five levels of workout bands, which can be easily switched at any time according to your preferences and needs. | High-Quality Material: Open-ended Pilates flex bands is 59 inches（4.9FT） long and 6 inches wide, made of high-quality TPE material, latex-free, skin-friendly，odorless, smooth surface, safe and durable, can maintain long-term elasticity, not easy to break. | Training And Rehabilitation: It is a high-quality Pilates elastic band product for resistance training and rehabilitation. It is ideal for Pilates, resistance training, physical therapy and mobility training. Simple and effective resistance bands can stretch and tone muscle groups and improve your posture. | Suitable For People: Suitable for athletes, exercisers, the elderly, rehabilitation trainers, and the stretch bands can be used for physical therapy, rehabilitation, wrestling, bodybuilding, Pilates, yoga, etc. Simple but effective exercises will build strength and speed recovery.