English: The contents of a needle exchange kit.

The items are (also annotated in the picture), from the top clockwise: a torniquet, cotton balls, a pot for cooking drugs, a condom, sterile water, alcohol swabs, and (from l-r) a thin needle, a thinner needle, and the thinnest needle.

Multiple needles of different bore sizes are included. Reason: The viscosity of drugs can be radically different, i.e. methadone is more viscous than heroin which is more viscous than cocaine. Pushing methadone through a small needle is impossible. Template:FACT