Abstract: A device convertible to present a child's highchair, booster chair, child carrier holder, rocking chair, and/or step stool or child's table has, generally, a chair with a back support, seat, and arms, a chair support assembly coupled to the seat, a tray assembly removably coupled to the chair arms, and a rocking assembly. The tray assembly is removably coupled, in a generally horizontal plane, to and above the chair arms to present a conventional highchair. The tray assembly is removably coupled, in a generally vertical plane, to the chair arms to present a child carrier holder. The tray assembly is removed entirely from the device to present a booster chair. The device may also have a chair support assembly having upper and lower leg assemblies removably coupled to each other, and a tray assembly having an inner tray removably coupled to an outer tray frame.