I Already have one and decided to purchase another for a perfect present for another dog lover!!! It definitely works!!! My Yorkiepoo is safely secure in the back seat. With a safe harness attatched as well just in case, heaven forbid, an accident does occur. I could go on and on as to how wonderful this seatbelt attachment is!!! Don't forget, you must wear a seatbelt, why not care for your loving dog and make the right decision to buckle up the pup as well!!!