ooZeeki IsoStrength Travel Stretch System Perform PNF or contract-relax technique for the most effective stretch without a partner utilizing our shock cord technology Cradles and isolates all lower leg muscles with its unique design Self-packing carrying case great for travelers and individuals on the go Effectively target tight hamstrings, calves, IT band and adductor muscles for the lower body Built in calf strap extremely effective for combating plantar fasciitis