Businesses in the postal services category handle the collection, sorting, transport and delivery of letters, documents and parcels. Services may cover domestic and international destinations, with options such as standard, tracked, signed-for, recorded or express delivery. Customers can also arrange parcel collection or drop-off, obtain proof of posting and, where offered, redirect or hold mail. Postal outlets may sell stamps and packaging materials, weigh and prepare items for dispatch, and provide facilities for sending parcels overseas or completing customs declarations. Some offer post office services alongside mail handling, such as PO boxes, mail holding and business mailing support. Larger providers may collect mail from business premises, process bulk mailings, supply franking equipment or provide fulfilment and distribution services.