Official Groundspeak Product
For those hiders that look to frustrate, its the Manga Nano from Bison Designs!
This tiniest of geocache containers features a magnetic base, a waterproof “O” ring, a knurled top for easier opening, and the Geocaching logo on the side.
One nano log sheet is included.
Dimensions:
7/16 inches tall by 5/16 inches in diameter.