Office supply retailer Staples announced Monday that it is going to allow Amazon to install its shipping lockers in its U.S. stores. The lockers, which have been previously installed in select 7-11 locations, allow customers to place orders online and pick them up in the store.

According to a Reuters report, retailers that partner with Amazon on the lockers receive “a small fee” of an undisclosed amount in exchange for the placement of the lockers.