The large-format zipper on this infant-toddler frame is sized specifically for the 18-month to 3-year range, giving very young children an opportunity to practice the pinch-and-pull motion of zippering before they encounter it on a jacket or backpack. The exaggerated zipper pull reduces frustration and keeps the focus on the movement pattern itself rather than the struggle to grip. A well-used addition to any practical life shelf where independence in dressing is a primary goal.