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MIAMI (CBSMiami) — If you procrastinated and haven’t finished your holiday shopping there is a new last-minute option.

Amazon Prime customers in several cities can order certain items and have them delivered in hours.

Using the ‘Prime Now’ app, last minute shoppers can choose from over 4,000 items. Amazon guarantees delivery of gifts, pantry items and electronics through Christmas Eve until the clock strikes midnight.

When asked how it changes Amazon and its competition, Stephenie Landry with Amazon Prime Now said, “Well, it changes the game for customers, being able to get stuff delivered to you in an hour is a huge advantage.  But it also is changing the game for our company too.  We’re adding more shopping days to the holiday season.”

Urban Fulfillment Centers are now available in Miami and other cities likes San Francisco, Houston and Atlanta –all purposely centrally located.

“There’s no way that we can get things to people in an hour if we weren’t in the center of the city,” said Landry.

As soon as the order arrives, it’s processed, bagged and handed off to a delivery associate.

Amazon Prime customers willing to shell out an extra $8 will have their order in an hour. For those willing to wait two hours, the service is free.

Sylvester Alderman will work from 6 a.m. to midnight on Christmas Eve – despite his family’s wishes.

“I told them I will do work and I will get off when I can and I will see them when I get home,” said Alderman.