Smart lockers are secure storage units that use technology to manage access and deliveries. They are often found in places like schools, offices, and apartment complexes, allowing users to receive packages or store personal items safely. Users can access these lockers through a unique code, mobile app, or RFID card, ensuring that only authorized individuals can open them. These lockers help streamline the delivery process by providing a designated space for packages, reducing the risk of theft or loss. Companies like Amazon and UPS have implemented smart locker systems to enhance convenience for their customers, making package retrieval easier and more efficient.