Polly progress is the only highchair that follows babys growth from birth to 3 years thanks to 5 different configurationsthe polly progress is a baby recliner highchair and booster seat in just one productthe upper part of the padding can be zipped off to convert the highchair to a compact booster seat to dine comfortably with all the familycomfortable and cocooning seat for your babys maximum comfortleg rest adjustable to 3 positionsback rest reclines to 4 positionsheight adjustable to 8