A quickdraw (also known as an extender) is a piece of climbing equipment used by rock and ice climbers to allow the climbing rope to run freely through protection such as bolt anchors or other traditional gear while leading.
A quickdraw consists of two carabiners connected by a semi-rigid material (sometimes called the "dogbone").[1] One carabiner has a straight gate and connects to an anchoring device. The other carabiner is for the climbing rope, and uses a bent gate.[2] Quickdraws are manufactured with either a solid carabiner gate or a wire carabiner gate for its lighter weight.