If you are travelling within the Municipality of Rome, this is your best option:

BIT
Time integrated ticket valid on metro, trams, trains and buses within the Municipality of Rome.

ROMA 24/48/72
Daily Integrated Ticket valid on metro, trams, trains and buses in the Municipality of Rome for 24, 48 or 72 hours.

CIS
One-week pass valid on metro, trams, trains and buses within the Municipality of Rome.

Metrebus card Roma
Monthly or annual pass to travel within the Municipality of Rome valid on metro, tram, trains and buses.