A carabiner is a metal ring designed for quick attachment and release operations. Carabiners, which usually have a spring-loaded closure mechanism, are used to safely connect ropes, chains or other connecting equipment. It is widely preferred in mountaineering, paragliding, marine, industrial and construction sectors. It is also frequently used in outdoor activities such as camping, climbing and rescue operations. The strength and safety of the carabiner depends on the manufacturing material and design.