The diaper pail refill is made of 7 layers of film and it’s compatible with cartridges for all types of trash pails 9 Pack Litter Refill Bags, 1x Installation Manual. Each Refill Holds About 260 Newborn Baby Diapers Compatible refill pack compatible with nappies bins on the market, for Genie bags refill, for Munchkin bags refill Litter Easy to assemble, simply pull out a bit of film, push it through the center of the cartridge and tie a knot at the bottom. Then, open the lid and funnel of the pail, place the cartridge on top, and push the refill all the way. Simple installation can save you a lot of time !!! The item doesn't include the refill cartridge. Save and reuse your empty refill cartridges!!! 100% new and Premium product can hold up to 260 diapers for newborn babies