Safety Protection at Night --- The reflective stitching on the strap design enhances the visibility in the dark, helping to easily recognize the dog's position in a poorly lit environment or on the car. The dual pet lead also reminds the surrounding vehicles to avoid accidents for your dogs, assuring your dogs’ safe. Adjustable Length --- With buckle on the straps and the elastic bungee inside, this seat belt can be adjusted from 20 inches to 27 inches and can be stretched to 32 inches for the maximum length. The circle can be adjusted from 16 inches to 24 inches. The elastic bungee helps dogs prevent jerking with sudden movement. The adjustable length allows the dogs get themselves comfy without restricting themselves. Tangle Free Design --- Never worry about your dogs getting tangled with our innovative tangle-free swivel piece. The heavy-duty 360° Swivel metal Rotation buckle is easy to hook and it is perfect to avoid tangle. With this smart design, it could help to ensure the safety of your pets and prevent you from distracting when driving. It allows your dogs to sit, stand, lie down comfortably or reach to see out the window but keep the dogs from jumping around in the car. Practical and Multifunctional --- The strap could not only be used as a seat belt, hanged on the headrest easily and the rotation metal buckle connects the dog harness or dog collar and also could use with the pet seat cover. It’s not only a pet seatbelt but also a general double leash. Whether it's walking or driving, it gives the dog the safest protection and easy to control 2 dogs. Headrest Restraint Design --- This double dog seatbelt is designed with headrest restraint. It can be used in all models of Vehicle which have headrests. The strap circle hanging on the headrest is connected by a lockable quick release buckle. The lockable buckle prevents the circle from opening and makes sure your pets safe. Adjust the seat belt to the max length and grip the strap circle to use it as a general double dog leash.