Jack Puzzle Brass translate The compact C11 carabiner is

The compact C11 carabiner is designed for carrying keys and lightweight accessories

The inside covers provide a range of useful information from the history of stenography and an abbreviations guide

Basic fire skills are needed

Chug Cap is designed for quick hydration

and coarse file

Jack Puzzle Brass translate The compact C11 carabiner isThe Jack Puzzle consists of six different notched brass bars that interlock in one specific way to create a unified "jack" shape. It is milled by a skilled machinist, and weighs almost half kilogram. A desk object, a paperweight, and a true distraction. But be warned, if you take it apart, you might not be able to figure out how to put it back together(Hand drawn assembly instructions are included).