MAKE IT EASY... GET THE KIT!
The PetBuckle Travel Kit comes with a Kwik-Connect Tether, Seat Belt Adapter, PetBuckle Seat Belt Harness, and a convenient FREE storage bag that can fit in the glove box or under the seat.

NOTE: For dogs over 100 pounds, it is not recommended that a Kwick-ConnectTether be used. The PetBuckleSeat Belt Harness with a standard
seat belt is the recommended configuration.