Lifeline USA Three Interchangeable 16" Cables - 90 lb. Resistance - Blue Whether you want to sculpt your chest using the LifeLine Chest Expander or perform higher quality reps with the Lifeline Pull-Up Revolution, extra cables of different resistance levels allow you to customize your workout and increase your intensity Includes three cables that measure approximately 16 inches long; These cables are interchangeable Lightweight and portable, these cables are great to use at home, the office or on the road; Choose the Lifeline cables that have the resistance you need to meet your workout goals Use these cables with the Lifeline Chest Expander or the Lifeline Pull-Up Revolution Includes: three 16-inch cables of your chosen resistance; The Chest Expander and the Pull Up Revolution are sold separately