The Tension Rope Elastic Bands for Exercise Fitness is a versatile equipment suitable for public fitness exercise. It is designed to target and strengthen various muscles in the body. One of its advantages is that it effectively works the biceps, which is a muscle with two heads responsible for arm flexion. Additionally, it also engages the triceps when bending the arm. By performing forearm raising exercises such as curls or reverse curls with the tensioner, you can fully exercise the brachialis muscles. The flexor brachii, the main muscle of the upper forearm, can also be strengthened through side curls with the tensioner. Made from comfortable, highly elastic, and durable TPE material, this 8-shaped chest-expanding tension rope can be used for a wide range of exercises. It is suitable for both yoga enthusiasts and individuals looking to build muscle. The thickened sponge provides increased comfort during workouts, ensuring a better experience. With multiple colors available, you can choose the one that suits your style. To use the tensioner effectively, there are several recommended methods. Firstly, grasp the handles on both ends of the tensioner with your hands and extend your arms to the sides, parallel to the chest. This exercise targets the chest muscles, biceps, and shoulder muscles. Another method involves placing the tensioner on your back and pulling it with both hands, targeting the latissimus dorsi, shoulder, and arm muscles. You can also hold the tensioner in front of your chest and stretch both sides to exercise the pectoral muscles. Other exercises include using the tensioner for arm and wrist strength, leg muscle training, and waist strength and muscle exercises. The Yoga 8 Word Chest Expander is made of TPE material and comes in two sizes: 10*47cm and 10*50cm. Please note that there may be slight differences between different batches, but these differences are minimal and do not affect the overall functionality of the product. Trust us to provide you with a high-quality fitness tool. Key Features: Suitable for public fitness exercise Targets multiple muscle groups Made from comfortable and durable TPE material 8-shaped design for versatile use Thickened sponge for increased comfort Available in multiple colors Comes with recommended exercise methods Two sizes available: 10*47cm and 10*50cm