Yes4All B5SO Premium Marble Foam Roller, Black Measured 5.5-inch round, 36-inch long high density, heat sealed foam roller Weight 1 lb., 30% heavier & firmer than the ones from the same class Great for yoga, strength, core balance, & stability exercise Designed to enhance balance, Pilates core abdominal, back stabilization, body awareness, muscle re-education, flexibility and dynamic strength Color : black