DEVTRA, Inc.'s The "CHECKER"® Vehicle ' Equipment Inspection Check-list books can make your job Easy, Simple, Quick ' Convenient with much accuracy and enjoyment. The 34 different titles available cover all of the most common vehicles ' equipment used in industry such as: Tractor-Trailers, Dumptrucks, Cargo/Cube truck vans ' other fleet vehicles such as Cars, SUV's, Vans, Pick-up trucks, Backhoes, Forklifts, etc.