This is a hip seat for infants. It has only been used a few times and is being sold because it will not be used again. (The following is quoted from the sales site) [Product Specifications] ○ Target age: 3 months to 36 months ○ Waist size: Approximately 60cm to 115cm (The waist adjustment range has been improved to 60cm so that even slender people can wear it.) ○ Colors: Black, Gray, Dark Gray, Light Blue ○ Weight capacity: Up to 20kg ○ Specifications: Hip seat with storage, unisex ○ Brand: Plaisiureux <Safety tested by a third-party organization> Passed strict quality inspections by an international inspection organization.