Although it can help you with whole-body stretch exercises, the Stretchy Tiger is more commonly used for leg, arm and shoulder stretches..Long Width: 1. A physical therapist favorite! Black side: 75% polyester, 25% Natural rubber Numbered loops help gauge flexibility improvements Flexible/elastic straps on one side with no stretch on the opposite side make it easy to insert feet or hands Who Can Benefit Someone who needs to increase their flexibility and range of motion Perfect to use in conjunction with yoga practice/Pilates classes, personal therapy, and physical therapy.