Photo Courtesy Dave Zatz

Amazon.com has struck a deal to put its new locker system — which allows customers to order products online and pick them up at physical locations — in Staples stores, according to a report today by Reuters.

Staples is the largest office supply retailer in the world, with more than $25 billion in annual sales and about 88,000 employees. It has more than 1,800 stores throughout the U.S.

That could give the Amazon Lockers program, which has remained in relative stealth mode since it was first discovered late last year, a big boost. It also comes as pressure mounts from physical retailers like Walmart, which are touting same-day delivery in some markets and in-store pick-up.

We’ve covered the Amazon Lockers from the time that they started popping up at 7-Eleven stores in the Seattle area last year, with GeekWire’s Todd Bishop giving it a try in the video below.

Amazon.com has never officially acknowledged the program, letting word spill out as they appear at retailers, college campuses and other locations across the country. It’s unclear how many lockers Amazon has in operation at the moment.  We’ve reached out to the company for comment, and we’ll update this post if we learn more.

Meanwhile, here’s a look at Todd picking up a set of batteries at a locker location in Seattle in October 2011.

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