Cushion made of memory foam, ideal for pelvic correction. - Size: 38cm x 45cm - Brand: IKSTAR - Color: Navy - Features: Memory foam cushion Thank you for viewing. Purchased in mid-August 2025, I sat on it about twice to try it out, but the size didn't fit, so I'm selling it. I think it's in relatively good condition, but please refrain from purchasing if you are sensitive to minor imperfections. Thank you. The original price was 3,980 yen. Body only, no instruction manual included, please understand.