The phrase "single package" means that there is only one item or thing being talked about. It refers to something that is not divided or separated into different parts or units. Full definition
This is why we have put together one single package offering the widest range of services for every author and every book. (tredition.com)
I love fruit leather, but those little single packages that they sell at the grocery store are expensive. (pearltrees.com)
Bali Water Sports and Elephant Ride Tour is a Double Activities Tour Packages we mixed together in single packages to allowe you try our amazing water sports adventure activity in beautiful beach and then you will continue the adventure by riding the biggest animal through the jungle and local village with professional Elephant tour guide. (baligoldentour.com)