Couriers and delivery services collect and transport parcels, documents and other items between homes, businesses and designated collection points. They may offer local, national and international delivery, using vans, cars, bicycles or larger vehicles according to the size, destination and urgency of the consignment. Services commonly include same-day, timed, next-day and standard delivery, as well as scheduled collections for businesses sending goods regularly. Customers may be able to arrange parcel collection, choose delivery options, track an item in transit and receive confirmation or proof of delivery. Some providers handle returns, fulfilment, bulk consignments or deliveries requiring special care, such as fragile, valuable or temperature-sensitive goods. The items accepted, delivery areas, transit times and available tracking or insurance vary between services, so customers typically need to check the provider's terms and any restrictions on size, weight or contents.