The 2-stage seatsaver™ is the original and number one selling, worldwide, car seat protector. The Prince Lionheart seatsaver has been the most trusted product of its kind since 1980. Its high-density foam construction ensures that car leather and upholstery is protected from depression damage, spills, scuff marks and more, while keeping car seats level and in proper position. The Prince Lionheart seatsavers works with all latch compatible car seat systems and they conform to any size automobile seat. Stage one, the bottom tray is used alone and works with all rear facing infant seats. Stage two is used with forward facing toddler and booster seats. The two stages connect together with heavy duty Velcro®.