Amazon.com has launched a grocery delivery service in the U.K., following the recent kickoff of a similar service in Germany.

The online retailer said it has 22,000 product lines ranging from cleaning products to fresh fruit to beer and pet food. Amazon is entering a crowded market in the U.K. Stores such as Tesco, Sainsburys and Waitrose have delivery services that can often deliver items the next day during a specific time range.

Items that Amazon directly fulfills will be delivered in the mail. Customers have two options for delivery. For an annual £49 (US$73.50) fee, customers can subscribe to Amazon's Prime membership, where an unlimited number of items can be delivered free.

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