Car Seat Travel Cart for Airport - Carseat Roller for Traveling. Extendable Base Plate, Foldable, storable, and stowable Under Your Airplane seat or Over Head Compartment. Black is up for auction in Baby Products. The current bid is $2.00, 95% below the $42.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.