Pedy Hands Free Dog Bicycle Exerciser Leash 2015 Newest Model with 550-lbs Pull Strength Leash Military Grade SAFE SYSTEM, A fixed seat lock and folding type buffer rope provides a safe ride for you and your dog. EASY TO INSTALL, Logical structure makes it easy to install and takes only few minutes to go. CONVENIENT TO USE, Easy to adjust internal cord length and cord can be switched out over time. MULTIPURPOSE, Can be fixed on a bicycle or detached in seconds and used as a walking leash. HIGH QUALITY MATIRALS, Mainly built from industrial strength stainless steel pipe and durable buffer rope.