These 10ML & 20ML concentrate jars comes with a popular clear lid. At the cost of replacing a supply of concentrated medicines, people simply can't afford to store them in cheap, inadequate containers. Concentrates don't need much space for a large supply, and these 10ML or 20ML jars holds more than enough without being bulky.
This is a plastic air-tight container for wax or oiil concentrates and any substance you place inside it is going to stay fresh, and safe until the day you take it out of the jar for use. The potency, and flavor of medicine stored in one of these 10ML or 20ML jars have an amazing life expectancy, and will not let you down.