Amazon Locker is a self-service package delivery service offered by online retailer Amazon. Amazon customers can select any Locker location as their delivery. The parcel lockers are for communities that have group mailboxes. These boxes have extra slots for parcels, which the post office will leave a. Locker. Amazon Hub Locker is a secure, self-serve, fully automated kiosk providing a convenient delivery solution for customers to pick up their Amazon packages.