Achieve the correct posture with an upright pelvis and straight back with this three-dimensional cushion! Designed under the supervision of Dr. Kenji Kojima, director of Kojima Chiropractic Clinic, this cushion features a three-dimensional W-curve seat that fits the buttocks and thighs, making it comfortable to sit on for long periods. The front protrusions naturally spread the legs, supporting an upright pelvis. The rear protrusions naturally straighten the back, promoting an upright pelvis. The cushion itself uses bamboo charcoal-infused low-rebound urethane, which excels at distributing weight. As you sit, it slowly sinks in, gently guiding you towards a beautiful posture. The cover is washable and removable via a zipper, allowing you to keep it clean at all times. ・Advertising: Oyama Co., Ltd. (TEL. 03-6858-3933) ・Seller: Cojito Co., Ltd. ・Importer: Cojito Co., Ltd. ・JAN: 4969133934513 ・Country of Origin: China ・Product Category: Household Goods ・Materials: Cover: Polyester, Cushioning Material: Urethane Foam