These resistance and pull up assistance bands are made of durable elastic material, suitable for both men and women. They come in different resistance levels for varied training needs. You can use them for assisting pull up exercises when you are building upper body strength. They work well for daily workout stretching to improve body flexibility. They are also ideal for physical therapy sessions to help recover muscle function and relieve joint stiffness. Suitable for home workouts, gym training, and outdoor exercise, they can assist full-body muscle training to boost your strength progress.