The blue OV chip card is an anonymous OV card. It is not linked to your name and can be shared between people. This card is very easy and quick to purchase. The blue OV card does not have any extra services or discounts, and it is a pre-paid card and the balance has to be topped up as you use it. This card is good for people who do not use public transportation very often. If you lose the blue OV chip card, then you simply have to buy a new one at a machine. The yellow card, also known as the personal OV chipkaart , comes with your name and your photo on it. It is ordered through the OV Chipkaart website, and it allows you to add discounts, additional services, season passes and more! There is also an option for an automatic reload system or a monthly invoicing. With the personal OV card you are able to rent bikes and if it is lost or stolen, the card can be blocked, and you can be given a new one!