The highchair conversion kit is another of the babyaby convertiblersquos unique modular creations adding years to the value of the original purchase once baby has grown out of the cot this easy to assemble conversion kit will create a highchair with footplate tray and harness the base is solid and the construction robust and safe the highchair can be used from 6 months as the baby grows through toddler stages the tray can be removed for free seating at a higher level at a table and the