The Cylindrical Bolster facilitates deep chest opening and back bending with it's 8" high diameter—the highest of the bolster lineup. The contoured, ergonomic shape fits perfectly under your knees while lying on your back providing relief for your lower back. Try it horizontally across the shoulder blades while on your back for an upper back extension. Alternatively, try vertical along the spine for deep chest opening and expansion. Find new depths in your posture and breath with one of our favourite bolster shapes