This diaper pail has barbs on the inside so, if you use a regular garbage bag instead of their expensive bags, it'll tear when you take it out, dumping old diapers everywhere :
Ubbi Diaper Pail Value Gift Set - Grey | Babylist Shop
Ubbi Diaper Pail 7-Piece Gift Set | Dillard's
Amazon.com: Disposable Diaper Pail Refill Plastic Bag (100 count) Compatible with Ubbi Diaper Bag Pail 13 Gal Capacity Diaper Pail Bag Fits 8 Gallon Medium Kitchen Trash Bag Heavy Duty Large Garbage