Support cushion to correct posture by standing the sacrum. By standing the sacrum, the pelvis is returned to the standing the sacrum. When the pelvis is widened, the cushion feels small, but if you use it repeatedly to adjust the posture to the shape of the cushion, you will feel that the posture gradually improves. It corrects the sacrum in the center of the pelvis, creates the correct spine curve and posture by providing an ergonomic tilt to the cushion. High resilience urethane foam is used for the cushion, and the body is made into a three dimensional shape to wrap the whole pelvis and reduce the burden on the waist. The cover can be removed and washed. This product was jointly developed with Mr. Atsushi Kobayashi, the representative director of the Japan Surgical Meister Association.