Discensori a otto arrampicata, ottimi per organizzare discese frenate. Vengono utilizzati anche come assicuratori. Un'asola della corda passa attraverso il foro grande e poi attorno al gambo, il foro piccolo invece viene moschettonato e agganciato all'imbrago.
The Italian brand Kong was born in 1830 from the efforts of Giuseppe Bonaiti. Its production is utterly made in Italy, and Kong is a leader manufacturer of metallic parts for climbing equipment. Among the innovations it introduced are the D-shape carabiner and the key-lock nose of the carabiners.
