Power Cable Lifeline's cables are all made using the dipped rubber process, so they'll last you longer than extruded fitness cables. However, no cable lasts forever. Dipping rubber is a process used to make fitness cables. The process is similar to how a candle is made and adds durability, consistency and safety to our Lifeline fitness cables. They provide smoother, more consistent resistances longer than the competition! Comes with triple grip handle that can hold up to three cables at once for mix and match resistance Cables are instantly and easily interchangeable and adjustable for maximum versatility. Up to 10 different resistance levels available. Available in R1 (lightest resistance) through R10 (heaviest resistance). 5' fitness cable with two rotator handles and door attachment Instructional poster by fitness expert Jon Hinds, CSCS, CPT, NASM, former strength coach of the LA Clippers "I have used Lifeline Power Cables for training and rehabilitation throughout my athletic and coaching career. World and Olympic level athletes continue to use Lifeline cables for their durability and function - both in rehabilitation and sport-specific training." - Bruce Baumgartner 4 time Olympic Medalist