High-Rebound Round Cushion for Postpartum, Hemorrhoids, Donut Cushion, Lower Back Pain, Coccyx, Sciatica, Buttock Pain, Posture Correction, Childbirth, Pregnancy, Maternity Gift, Present, Chair Cushion, Zabuton, Floor Chair, Seiza, Extra Thick, Hole Cushion Purchase Price: 2780 yen I used it for about a month, but I'm selling it because I switched to a floor chair. My child touched it twice, so you can see a mark like cookie crumbs in the third picture. (I don't think it affects the product's performance...) I will wash the cover before shipping.