The Star Trek Communicator Dog Bag Dispenser is a replica of the communicator that has a grommet-hole for dispensing the bags, a clip for your leash or belt and holds bag rolls that are 2.25" X 1.25". This dispenser bag even has the flip up part of the communicator so when you are reaching for the bags you can feel like you are calling Number 2 to pick up the number 2. WOW! That was an awful joke but I just couldn't resist. Also, I don't think William Riker was ever on poo duty. And I'm pretty sure this communicator is from the Original Series ... so anyway...  Oh! The Star Trek Communicator Dog Bag Dispenser comes with a roll of bags too.