ooZeeki IsoStrength Lite Stretch System Perform PNF or contract-relax technique for the most effective stretch without a partner utilizing our shock cord technology Cradles and Isolates targeted muscles while you stretch with its unique design Constructed with padded 2" climbers quality webbing for added support Light and durable, premium quality carrying cases are great for travel and for people on the go Effectively target tight hamstrings, calves, IT band and adductor muscles for the lower body in addition to the arm shoulder and neck