Pitons are metal spikes used in rock climbing and mountaineering to secure ropes and provide safety for climbers. They are typically made of steel and come in various shapes and sizes, designed to be driven into cracks or holes in the rock. Once placed, a piton can hold the weight of a climber, allowing them to ascend safely. Climbers often use pitons in conjunction with other gear, such as carabiners and climbing ropes, to create a secure anchor point. While pitons were once a common tool in climbing, many climbers now prefer using cams and nuts for protection, as they can be less damaging to the rock.