Yes, my dog is riding in the front seat and not in a crate. I have an entire backseat cover and we are working on that. She is a stander, a twirler, a whiner, and a climber. She wears a collar and a harness for walking/training, as well as for car rides. I would not hook her to a seatbelt by her throat so a “tether” to her harness is what I wanted. I almost opted for one of the seatbelt clip ins but decided they would a nightmare for her given her twirling and climbing and whining. This secured to the headrest (which is always in the down position), hooks to her harness so it will not yank her by the throat in the event of a accident or me swerving to avoid something, and it extends long enough that I can adjust her range of freedom without plummeting off a seat either as she grows from a puppy to a dog. It is currently at its shortest length though, so adjusting longer is probably not happening.It seems heavy duty, same material as leashes with metal clip, but there are plastic parts that will weaken with age especially in a hot car exposed to UV. This came as a 2 pack, so I will likely just replace the current one with the spare in 6 months to be cautious.I opted for the yellowish one because it is the most visible. I think if there ever were an emergency it would be the most visible color to draw attention in my truck’s dark interior. Not my favorite color, but increasing visibility in the event the tether/seatbelt has to do its job, well, that was more important.So far it works great. Keeps her in the seat when I brake, turn, even if she twirling or trying to climb out of the seat. She doesn’t get tangled up, my seatbelt clip isn’t broken because I clipped something into it, and this device is readily visible since it attaches to the headrest. If she grows any taller I may need to find a shorter one, but otherwise this is a good length with good adjustments for dogs shorter than 18” to the shoulder. I would suggest measuring your headrest to the seat, then subtracting your dogs shoulder height to get the best length. My puppy has grown a few inches in the past month this has been used, and I have easily shortened it 4” in that time, and I cannot shorten it any further.Overall this ticks all the boxes for my requirements: adjustability, length, visibility, allows my dog to twirl without tangling herself up, doesn’t jeopardize my seatbelt clip, and seems beefy enough to do its job if it gets tested beyond me giving it several hard yanks. Fair price, 2 pack so I have a replacement at the ready, and I will do my due diligence and inspect it regularly for signs of wear or failure on any clips, rings or plastic. Very easy to quickly clip onto her harness and just as easy to unclip. Here’s to hoping it never gets tested beyond this!