Polly progress is the 5 in 1 transformable solution by chicco suitable from birth it can be 1 newborn chair 2 highchair 3 first chair 4 booster seat 5 compact booster seatall in 1 product suitable from birth it becomes a highchair with 8 position adjustable height and adjustable tray with cover the seat can be detached and becomes a booster seat ultra compact when folded and free standing suitable from birth up to 3 years 5 products in 1 from newborn chair to booster seat 8