This is an ISOFIX-compatible child seat suitable for newborns. I purchased it to use in my grandmother's car, but my older child graduated from their child seat before I could install it. Since I was able to use the hand-me-down seat, this one has remained unopened and stored indoors. I purchased it around October 2025. If you can pick it up in Yamanashi Prefecture, I can offer it for 10,000 yen with no shipping cost. Please be aware that the shipping cost is set to be paid by the buyer.