How does one refill a Pet poop bag dispenser? It relies on the holder. Some have tops that twist off, where you could change an vacant roll. Many others have compartments that hold a roll with bags getting fed away from a gap or slit. The MuttRuk Sidekick Hip Pack https://pet-n-pet-poop-bags78901.blogunteer.com/33645427/the-best-side-of-compostable-poop-bags