The lockers are designed to store three sizes of luggage. The smallest lockers have a USB socket. The lockers have electronically locked doors. At the terminal, the user selects the required locker size, rental period, and makes payment with a payment card. Then the user prints a receipt with a code used to collect the luggage. The code can be optionally sent to the specified e-mail address, or as an SMS message to the user’s mobile phone.