Amazon has expanded its Pantry grocery delivery service to the United Kingdom. Launched last year in the United States, the UK version of the service allows its users to order more than 4,000 food, drink, household supplies, and other products in one delivery, with a fixed price of £3 ($4.50) for a delivery of a single 20kg (44 pounds) box, with extra boxes in the same order priced at £1 ($1.50) each if the physical volume of the original is exceeded.