Here's one sneaky geocaching container: a magnetic "rusty" bolt! The bolt is hollowed out for a log sheet, and the magnet is secured in the top of the nut.
When threaded together it looks like an old bolt that belongs on a rusty surface. The strong magnet holds it firmly in place and the rubber seal keeps the log dry.
Attach this to a rusty metal surface and watch those favourite Geocaching.com points add up. This is one great creative hide! Two waterproof logsheets are included with each geocache container.
Diameter: 13mm (0.5")
Length: 38mm (1.5")
Interior Diameter: 10mm (3/8")
Interior Length: 32mm (1.25")
(All measurements are approximations.)