Stability strap: Practical design - safety rope, when used, step on the sole of the foot, making the ankle strap and foot stronger, keeping the calf muscles in a tight state, and the exercise effect is more significant. 4 connecting D-rings: 1 on each side of the ankle strap, 2 on the front/rear sides, a total of 4 D-rings. You can buckle the ankle strap and cable machine from four directions to accurately train your inner and outer legs from multiple directions. Adjustable Velcro: Velcro sticks securely and is easy to put on. You can adjust the ankle size (girth range: 10in-15in/25cm-40cm) with Velcro to make it better fit for male or female feet. MORE COMFORTABLE: The ankle is made of soft neoprene, comfortable and breathable to wear. The thickened part in the middle can reach 8mm, which can protect your legs or arms well. PERFECT LOWER BODY/ARM TRAINER: It includes a pair of ankle straps that work with the cable machine to help you sculpt your body and maintain your perfect shape. Effectively exercises the buttocks, thighs, calves, soles, inner legs, and outer legs. You can also wear it on your arm for strength training. There are many ways to use it waiting for you to discover.