The Seatsaver protects your car seat from baby seat damage, and has two stages that grow with your child! The bottom tray is for stage one, and is used alone with rear-facing infant seats. The stage two back attaches to the bottom tray for use with forward-facing toddler and booster car seats. High-density foam construction prevents depression damage caused by children's car seats. The bottom tray keeps all car seats level and in proper position, and the kick plate protects upholstery from shoe scuffs! Works with all LATCH compatible car seat systems and fits all automobiles. Measures approximately 30" H x 18" W x 1/4" D. Ages 0-7. Made in the USA.