1. Upgrade and improvement: The ankle strap has an additional strap and a rotating D-ring, making it more relaxed, flexible, and standardized. It can fully activate your hips and fully stretch your legs. 2. 4D ring design: The ankle strap with a D-ring features a unique design with four fixed D-rings, ensuring even weight distribution during exercise, ankle stability, and stronger power. 3. Adjustable: The length of the ankle strap rope can be adjusted according to the exercise you want, easily adjusting the required range of motion, fitting tightly and increasing comfort. It is not easy to fall off during exercise. 4. High-quality materials: The ankle strap is made of 6mm thick diving material, which is comfortable and breathable. The steel - structured reinforced double D-rings + 2 side rings are safe, sturdy, and easy to connect to cable motors and resistance trainers, effectively protecting your legs or arms. 5. Suitable for everyone: The gym ankle strap is compatible with most standard fitness leg rings, resistance trainers, and fitness equipment, and is very suitable for resistance training of the hips, buttocks, thighs, calves, and hamstrings.