Coastal Pet Products Titan Aerial Dog Run 25 ft.Let your dog's inner explorer out with the Titan Aerial Dog Run, which provides either 25' or 50' of line for your dog to take advantage of. For use with dogs up to 50 lbs., the lead gives your dog the freedom to roam while staying safely in a protected area. The kit comes with a lead line and all the hardware needed to connect between two wooden sources (tree, house, pole, etc.)