The Click Adjustable Car Restraint from EzyDog is a simple to use dog car harness that keeps your pup in one position while preventing driver distraction. Just click it into a car's seat belt buckle receiver and clip the snap hook to your pup's harness and you're good to go. Fully adjustable from 17-1/2 to 26 inches, it's suitable for different size dogs and allows flexibility for movement in the car. Caution: This product is designed to be used with EzyDog harnesses to prevent driver distraction and restrain the dog to one position in the vehicle. In the event of a car accident it may not prevent injury to the passengers or your dog. Inspect attachment for wear or abrasion. Do not use if damaged. The Click Adjustable Car Dog Restraint is not for use in Volvo brand automobiles.