Metrobús is a 10 trips ticket valid for both buses and subway. There's no "Metro" only ticket (well, except if you buy a single ticket).

I think in Barcelona you can buy a 10 trips ticket for Metro only but in Madrid there is only Metrobús which, in my opinion, is very convenient.

Regards,

Antonio

PS: My advice is always to check the official site. Here is the link:
http://www.metromadrid.es/red/billetes/main_i.html

[This message has been edited by Antonio (edited 06-25-2000).]
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