They're compatible with multiple pails such as the Munchkin Step Pail and all Genie Elite, Essentials and Mini models. These Munchkin diaper pail refills are built with odor protection to lock in bad smells and it is created with a seven-layer film. This allows for the bags to be durable and capable of holding up to 816 diapers. Three come in a pack and each Diaper Genie refill contains 272 bags. Inserting them into the Genie pails is simple. Place the refill container at the top of the Genie. The bags hang inside the can and once full can be pulled off and disposed of. Then the next bag pulls down to be used. This pack of Nursery Fresh diaper pail refills can be a valuable asset in a baby's nursery room.