what is a carabineer
A carabiner (/kaerÉËbiËnÉr/) kÃ¦rÉËbiËnÉr or karabiner is a metal loop with a-spring loaded gate used to quickly and reversibly connect, components most notably in-safety critical. systemsistory [edit]. Otto Herzog in 1911 was the first climber to have used the carabiner device based on the pear used by the firemen of Munich.