Used for two weeks postpartum. It's thick and sturdy, and I found it very useful. I bought it on Amazon for 3980 yen. It's still in beautiful condition and can be used for a long time. I will home clean the cover before shipping. [Featured in "Hiyoko Club" for the first time & Recommended by Active Midwives] U-shaped cushion, donut cushion, postpartum, hemorrhoids, buttock protection, high-resilience, maternity support, pregnant women's gift