The double dog leash is made of premium double-layered nylon fabric, making it durable and capable of holding up to 180 pounds. The buckle is constructed with steel for added strength and durability. Featuring mountaineering rope and braided nylon elastic extension, the leash is lightweight, strong, and easy to clean. The 360-degree swivel buckle design helps prevent tangling when walking two dogs. Adjustable length allows dogs more freedom of movement. The bungee design absorbs shock from sudden movements, reducing pull tension, especially useful for energetic dogs. The elastic cord extends from 20 inches to 35 inches, providing ample space for your dog to walk or run comfortably beside or ahead of you. If the product arrives damaged or defective, or if you experience any issues, please contact the seller through Amazon messaging for prompt assistance.