What is the common way heroin is packaged for sale?

Heroin is commonly packaged in bindles for sale. A bindle is a small, typically tightly wrapped packet that is convenient for transporting and can often contain a measured dose of the drug. This method of packaging is preferred by dealers and users due to its discreet nature and ease of handling.

The other packaging options are not standard for heroin. While syringes may be used for administration after the drug is obtained, they are not a packaging method for selling heroin itself. Sealed jars and cardboard boxes are generally associated with the packaging of food or other non-narcotic substances rather than illicit drugs like heroin. This context highlights why bindles are the most recognized and common form of packaging for heroin in the drug trade.