Time-tested over the past 45 years, Balanced Body®’s Pilates springs are the best springs available today. Continually tested for consistency, strength and durability. Their Signature Springs are made with nickel-plated carbon steel to minimize the risk of microscopic cracks. Color-coded hooks swivel freely inside tapered ends, reducing stress. These innovations ensure Balanced Body® Signature Springs last longer while delivering quieter, superior performance in every workout.