– Eco-certified EVA foam, SGS passed – 100% raw material, EVA foam
– Unique design with dimpled surface for deeper massage to relieve muscular pain and tightness similar to the thumbs of a massage therapist
– Stretches muscles and other soft tissues in multiple directions, breaking down “knots” to help increase your flexibility and help relieve back pain
– Compact enough to travel with
Outside : 100% EVA, Inner : 100 % EVA