Evenflo Maestro Harnessed Booster Car Seat for $65.99.The Evenflo Maestro booster car seat features harness height adjustments, allowing this safety seat to grow with your child. An enhanced head support and sidewalls provide comfort and protection, and a removable seat pad and head pillow are machine washable to help keep the seat looking clean. Designed and tested for structural integrity, this child vehicle seat promotes a proper fit for a safer drive.