Derived from Sumos Matawari stretch, Flexcushion enables you to stretch effectively, by helping to maintain pelvis upright. Flexcushion is an ideal prop for Stretching, Pilates, Yoga and Rehab. Flexcushion makes every stretch more effective. Flexcushion helps to maintain neutral pelvis while seated, thus, it makes it easier to stretch effectively even for those who have tight hips. As for Pilates, Flexcushion makes every exercise "easier and safer" and even "harder". Durable and light, only 2.8 lbs!