Purchased in mid-January 2024 after giving birth, and used only a few times. I compared various donut cushions, and this one had the perfect firmness. Thanks to it, I experienced almost no pain from my episiotomy, so I barely used it. ────────────────── Diameter: Approximately 40cm Thickness: Approximately 5cm Weight: Approximately 0.5kg Composition: Outer fabric: 100% polyester (urethane coating) Filling: Upper layer: 100% polyester Lower layer: Urethane foam Manufacturer: Nishikawa Living Co., Ltd. Made in China Product Specifications: U-shaped, with two types of firmness in the filling (reversible) Urethane coating on the outer fabric Not washable Product Description: This reversible cushion was developed in collaboration with Dr. Masahiro Nishikawa, a gynecologist, and Nishikawa Living (Osaka Nishikawa), a long-established bedding manufacturer, based on the feedback from mothers immediately after childbirth. The U-shape prevents contact with the perineal area when sitting. It alleviates pain immediately after childbirth. The outer fabric has a urethane coating for easy cleaning and a smooth, silky feel. ────────────────── ● I only used it for breastfeeding and meals, so it is in excellent condition with no noticeable stains or damage. ● The U-shape was very helpful as it was less likely to come into contact with the episiotomy wound compared to a donut-shaped cushion. ● It is a reversible type with a firm side and a soft side, allowing you to choose your preferred sitting comfort. ● The surface is coated with a smooth material, so you can wipe away any dirt immediately.