Non-slip round cushion made of soft fabric. - Color: Black - Design: Circular with a hole - Material: Soft fabric - Back: Non-slip treatment Thank you for viewing. I used this a few times after giving birth, but I stopped using it because the issue improved after a few days, and it has been stored in the closet. It will be shipped compressed. I purchased it in 2022 for 3300 yen. Size: 44cm x 34.37cm Weight: 440g