It’s a nano but appearances are often illusory.
Wait till you see what’s inside. It’s a little flower power, man!
The lid is pretty air tight. Twist it back and forth a little to get it off and on.
The log is in the vial. Bring tweezers. BYOP.
Nota Bene: If you are caching in the late spring or early summer, mosquito repellent is highly recommended. They’re wicked this time of the year.