Locking carabiners, also known as locking D-shaped carabiners, are one of the most popular and versatile types of carabiners used in climbing. Carabiners are metal loops with a spring-loaded gate, which can be opened and closed. Locking carabiners have a mechanism that locks the gate shut, making them more secure than non-locking carabiners.
Locking carabiners are available in a variety of sizes, shapes, and colors. The most popular shape is the D-shaped carabiner, which is strong and easy to use. There are also oval and pear-shaped carabiners, which are less common but offer different benefits. Carabiners come in different colors, but the most popular are black and silver.
Locking carabiners are used for a variety of purposes, including connecting the rope to the anchor, attaching gear to your harness, and belaying. They are an essential piece of gear for any climber.