Lifeline(R) Resistance Cables are interchangeable with various resistance levels. Use different cables for different exercises and ranges of motion for added challenge and continued strength. Train Hard Safe option, great for rehab exercises Maintains resistance throughout entire rep 5' Cable length to accommodate a range of exercises Progressive layering technology provides a consistent force through entire move Cables are color-coded and easily identified Simple interchangeable process Additional Details 60 day limited warranty All cables sold individually