These rectangular hardwood blocks lend extra support and extension to your yoga postures. Use them to ground your lower hand in standing poses, to space the hands in peacock pose, or to support your sacrum in bridge. Each block offers three useful dimensions. Their uses are endless! Our wood blocks are hollow and made from finely sanded and finished birch. They are lighter than solid blocks and are extremely stable. Rounded edges and corners lend comfort in supported poses. The Yoga wood block measures 3-1/2" X 5 1/2" X 9".