This sturdy aluminum container will definitely not break easily and water cannot possibly get inside, making it perfect to hide under the surface of the water, or in other places where it can get wet.
 

 
It is also possible to add a log strip of the type "Wider micro log strip RITR" which is water-resistant and fits perfectly in this container.
 

 
Length: approx. 100 mm 
 
Diameter: approx. 30 mm