This set of pull up assistance resistance bands is made of durable natural latex, offering different resistance levels to suit different training needs. They are perfect for pull up assistance, helping you gradually build strength to complete full pull ups. You can also use them for general working out, muscle training for legs, arms, back and core, as well as flexibility stretching exercises. Suitable for use at home, gym, outdoor training areas, even when you travel. Lightweight and portable, they are ideal fitness tools for both beginners and experienced trainers.