The carabiner was invented in 1910 by German climber Otto Herzog.
 It has been used by the military since the 1930s and is still in use today.
 The compass is considered one of mankind's greatest inventions and has been used since ancient times.
 The alcohol thermometer was created in 1714 by Daniel Gabriel Fahrenheit as a modern improvement on the existing thermometer.
 Whetstones have been used since the prehistoric Stone Age, and their history spans the same period as tool use.
 This feature-packed carabiner module is designed for your adventures.
 The carabiner can be attached to a ring with a diameter of up to 7 mm (rope up to 8 mm).
 Withstands a static load of 100 kg (dynamic use 30 kg).
 Includes a compass and thermometer to help you determine direction and temperature.
 If you carry a knife, you can simply insert the blade into the slot equipped with a ceramic whetstone and move it back and forth.
 You can reorganize your days anywhere.
 -caution-
 Do not overload the carabiner.
 When using a whetstone, constantly check that the blade is correctly inserted into the groove.
 Be careful not to cut your hand on the blade.