2 Usage Seatbelt / Leash --- Its 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. 360 Tangle Free Design --- Never worry about your dogs getting tangled with our innovative tangle-free swivel piece. It allows your dogs to sit, stand, lie down comfortably or reach to see out the window which prevent you from distracting when driving. Lockable & Easy to Install --- The strap circle hanging on the headrest is connected by a lockable quick release buckle. The lockable buckle easy to install, which can be used in all models of Vehicle which have headrests. Adjustable Length --- With buckle on the straps and the elastic bungee inside, this seat belt can be adjusted from 20 in to 27 in and can be stretched to 32 in for the maximum length. The circle can be adjusted from 16 in to 24 in. The elastic bungee helps dogs prevent jerking with sudden movement which allows your dogs comfy. Safety Reflective Stitching --- 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.