This Smart Resistance Cable System is a series of interchangeable cables, designed to be paired with the Smart Quick Flip Handles. Create your own resistance routine with ease. The cables are multi-layered so they last longer than common extruded bands and are super portable.Strengthen & tone with every movementMove up resistance levels as your strength increasesDiversify your workouts, comparable to an adjustable weight machineStrong enough for commercial use, the Smart Resistance Cable System is ideal for home gym settings. Add a Smart Door Anchor for more versatility. Diversify your workouts, comparable to an adjustable weight machineQuickly change out cables for varying resistances with different exercisesTarget specific muscles, perfect for injury recovery & prevention routinesBoost your stamina, flexibility, range of motion & moreIncreased durability from progressive layeringStrong enough for commercial use & home gym settings