The Prodigy infant car seat from Summer Infant is not only easy to install, it tells you when it"s installed correctly. Its innovative SmartScreen technology features visual indicators that guide you through a three-step process: just click, level and tighten. The five-point harness automatically adjusts to the size of your growing child. Accommodating babies as small as four pounds, the Prodigy features a removable infant insert and headrest.