Power Systems Shoulder Rotator Cuff Builder, Resistance Tube with Handle and Foot-Loop, 3 Feet, Back (67115) Shoulder and rotator cuff rehab tool 3 foot latex resistance tube 6-foot maximum stretch Nylon loop on one end of the tube, handle on the other Resistance exercise training aid for speed, agility, strength, power, running, football, volleyball, basketball, baseball, soccer and all other athletic, fitness, weight, or cross training