Six configurations let this convertible high chair work as a full high chair, booster seat, child stool, and kids table and chair set so one frame covers feeding and play from 6 to 36 months. The 23 x 23 x 38.5 in overall size forms a stable pyramid structure with non-slip foot pads to help the chair stay put while supporting up to 55 lbs. A 3-position adjustable tray lets you move the eating surface as your baby grows, and the double layer seat cushion adds comfort and can be removed when your child needs more room. The removable BPA-free PP tray and detachable seat cushion simplify cleanup after meals.