Between April and October, during the warmer months, it is possible to rent Stockholm City Bikes by purchasing a bike card online or through retailers. Cards allow users to rent bikes from any Stockholm City Bikes stand spread across the city and return them in any stand. There are two types of cards: the Season Card (valid from 1 April to 31 October) and the 3-day card. When their validity runs out they can be reactivated and are therefore reusable. Bikes can be used for up to three hours per loan and can be rented from Monday to Sunday from 6 am to 10 pm.