ZippyPaws Leash Bag can be secured to most flat nylon/cloth leashes and rope leashes to carry 1 roll of dog poop pick-up bags. Attaches to most leashes with Velcro strips Easy to pull out poop bags one-by-one through side opening Holds 1 standard roll of poop bags (1 FREE roll included!) Large enough to hold keys or a few treats Slim profile - doesn't bounce around when walking your dog Machine washable, hang dry