Amazon has launched an online grocery service called Prime Pantry that lets US members of its Prime loyalty scheme do their food shopping on the website.
The service allows members to fill a 45-pound (20kg) box of groceries and have it delivered to them for a flat fee of $5.99 dollars (£3.56) - though fresh food is not available through the service.
The Amazon website says: "Adding your first Prime Pantry item to Cart starts a Prime Pantry box. As you shop, you see that each Pantry item tells you what percentage of a Pantry box it fills based on its size and weight.
"Pantry boxes are large and can hold up to 45 pounds or four cubic feet of household products. As you check items off your list, we continuously track and show you how full your box is."
The service - which is currently only available in the US - is the latest in a line of new services Amazon has recently launched to compete with rivals such as Apple and Google.