PERFECT DETAILS --- The hardware is made of metal, while the straps are made of durable nylon. Reflective stitching is perfect for nighttime use. The elastic prevents your dog from stuttering during sudden movements and prevents strong pulling, making your dog's arms more comfortable when trying to pull. No tangling --- Don't Don't worry about your dog getting tangled in our innovative no-swirl swivels. The sturdy 360 metal swivel buckle locks easily and is perfect for preventing tangles. Two rubber alloy snaps are attached to each elastic band, suitable for stable connection with safety belts or collars. Multifunctional --- The double leash for 2 dogs can not only connect the dog leash, but also the seat belt. Dogs provide the safest protection when walking or driving. Spare parts must not be removed. Hands-free design allows for easy control of 2 dogs. ADJUSTABLE AND CONVENIENT --- Tangle-free swivel mesh attachment prevents your dog from passing through and allows both dogs to move freely. Shock repulsion is used to increase cushioning and deflection during sudden movements. Good adjustable length, allowing the dog to feel comfortable without restricting themselves. SAFE AT NIGHT --- Reflective stitching on the belt improves visibility in the dark, allowing you to locate your dog in dimly lit environments or in the car. The leash can also alert surrounding vehicles to avoid accidents with your dog, ensuring your dog's safety. Note: The data is all measured manually, please allow 1-3cm error in Due to differences in light and display, there may be some color differences, please refer to the actual item received.