Snappi fasteners are used to pin prefolds or flat diapers. They are made from a stretchable material and have claws that hook into the diaper. Snappi fasteners are safer than diaper pins which can poke babies or caregivers.
Diaper covers are used to provide a water proof backing for prefold diapers to prevent leaks. You can wash your diaper covers after each use or they can be reused if not soiled. Diaper covers should be air dried or sun dried in order to extend their lives. Some covers can be tumble dried on a low setting. Be sure to tuck diaper completely in the diaper cover to prevent leaks. Refer to your manufacturers' instruction on how to care for the diaper cover.