a) bit (€ 1.00) which lasts 75 minutes after stamping;
b) big (€ 4.00) that lasts the whole day, until 24.00, for an unlimited number of trips;
c) bti (€ 11.00) valid for 3 days from the date of the first validation, ie, up 24.00 on the third day, including stamping, and an unlimited number of trips;
d) cis (€ 16.00) for 7 days from the date of the first validation, ie, up 24.00 on the seventh day, including stamping, and an unlimited number of trips.

For details on the types of ATAC membership (valid for bus, metro and regional railways) click here