Oyster is a plastic smartcard you can use instead of paper tickets. You can put Travelcards, Bus & Tram Passes and pay as you go credit on it, which you use up as you travel.

You can also add some discount entitlements to it such as National Railcards and discounts for those on low income or who are unemployed.

You can:

* Store credit to pay as you go
* Set up Auto-top up so you never run out of credit
* Add Travelcards if they're for longer than a day
* Add Bus & Tram Passes
* Add Bus & Tram and New Deal discounts
* Add National Railcards or Gold Card discounts
* Get student and child discounts with an Oyster photocard
* Protect your card from loss or theft.