Use our EzyDog leash extensions to lengthen one dog leash or use two as a coupler for tangle-free dog walking. You never know when you might need a good leash extension. If you are out camping and you need to tie your dog up temporarily, the standard leash extension can double as a tether , or if you decide to go for a run with your dog and a short dog leash doesn't give them enough room to jog along at your side, the leash extension is there to save the day!