Climbing holds are essential features used in rock climbing and bouldering. They come in various shapes and sizes, designed to provide grip for climbers. Common types include crimps, slopers, and jugs, each offering different levels of difficulty and hand positions. These holds are typically made from materials like resin or polyurethane and are often attached to climbing walls or outdoor rock faces. The arrangement of holds creates routes, known as problems, which climbers navigate by using their strength and technique to ascend.