OVchipcard
The OV-chipkaart is a personal or anonymous smart card used for public transport in the Netherlands. It replaced paper tickets and the strippenkaart system. The card can be loaded with credit or a subscription. To travel, passengers check in by holding the OV-chipkaart against a reader at the start of their journey and check out at the end by doing the same at the exit reader. The fare is then automatically calculated and deducted from the card's balance.
There are several types of OV-chipkaart. The personal OV-chipkaart is linked to an individual, allows for subscriptions
The OV-chipkaart is used on trains, trams, buses, and metro services operated by various public transport companies