Enhance your functional trainer or cable machine workout with the Inspire Fitness Ankle Cuff attachment. This attachment is adjustable and is made with high-quality foam padding to ensure comfort and stability during use. It has a heavy-duty D ring which easily attaches to any Inspire Fitness functional trainer and is universally compatible with most cable machines and functional. The Ankle Cuff attachment is lightweight, easy to store, and is incredibly versatile allowing you to perform standing hamstring curls, inner and outer thigh exercises, donkey kicks, and more.