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Modern webbing is often made from dyneema, which is usually stronger and lighter than nylon. While 12 mm dyneema slings have a tensile strength of around 22 kN, a one-inch (25-mm) tubular climb-spec nylon webbing has a tensile strength of about 20 kN (4000 pounds) Some webbing is tubular or hollow core and is advantageous because rope can be placed inside of it, preventing damage to the sheath of a kernmantle rope if it hangs over a sharp edge. Webbing is inexpensive when compared with climbing rope.
When webbing is sewn together at the ends (using reinforced stitching), it becomes known as a sling or runner, and if you clip a carabiner to each end of the sling, you have a quickdraw. Webbing has many uses such as extending the distance between protection and a tie-in point, an anchor extension or equalization, securely anchoring a belayer (typically when the climber is heavier than the belayer), creating makeshift harnesses, carrying equipment, and as a component of quickdraws. Webbing is usually tied (using a water knot or beer knot).