If your dog is a regular leash-puller or sometimes even launches strong jerks, then the large Long Paws Anti-Shock Leash Extender will help you avoid this act. It is designed to ease the strains of pulling dogs with its unique Anti-shock Leash extension. The Leash Extender adds a shock absorber to any fixed length dog leash and reduces shocks from pulling dogs making jogging with dogs an easy task. It also eases any strain on your shoulder or arms. The extender is fashioned into a handle, so you can take control of your dogs in tighter environments. Available in small size for medium to large-sized dogs.