I'm selling this because I no longer need it. I've only used it a few times and it's been hand-washed once. Hip seat with safety features (Shoulder belt, safety belt) Recommended use: from when the baby can sit up to around 36 months old. ●Product Description We focused especially on "safety" during manufacturing. We considered how to comfortably carry your child and devised ways to minimize the burden! To enhance safety compared to existing products, it's been improved with belts. Also, based on [customer feedback], [surveys of housewives/househusbands], and [advice from current nursery school teachers], we've conducted safety tests by a third-party organization and added safety belts and non-slip material on the entire surface. Furthermore, we offer a wider variety of color options than previous products, and the fact that we've developed it with "attention to detail" in [quality details] is why the Coperta hip seat is chosen.